diff --git a/src/assets/css/reprodb-search.css b/src/assets/css/reprodb-search.css
index 17fcdf36..33570a9d 100644
--- a/src/assets/css/reprodb-search.css
+++ b/src/assets/css/reprodb-search.css
@@ -60,6 +60,25 @@ html { overflow-y: scroll; }
 .rdb-icon-btn svg {
   display: block;
 }
+.rdb-help-link {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  height: 28px;
+  padding: 0 9px;
+  border: 1px solid #ccc;
+  border-radius: 4px;
+  background: #fff;
+  color: #555;
+  font-size: 0.82em;
+  font-weight: 600;
+  text-decoration: none;
+  transition: background 0.15s, color 0.15s;
+}
+.rdb-help-link:hover {
+  background: #f0f0f0;
+  color: #333;
+}
 
 /* ── Profile cards (author/institution cards in search results) ─────── */
 #profileCards {
@@ -119,6 +138,8 @@ html { overflow-y: scroll; }
   html:not([data-theme="light"]) #filters select { background: #1e2127; color: #d6d9dc; border-color: #4a4f57; }
   html:not([data-theme="light"]) .rdb-icon-btn { background: #1e2127; color: #d6d9dc; border-color: #4a4f57; }
   html:not([data-theme="light"]) .rdb-icon-btn:hover { background: #2a3038; color: #fff; }
+  html:not([data-theme="light"]) .rdb-help-link { background: #1e2127; color: #d6d9dc; border-color: #4a4f57; }
+  html:not([data-theme="light"]) .rdb-help-link:hover { background: #2a3038; color: #fff; }
   html:not([data-theme="light"]) #pagination button { background: #1e2127; color: #d6d9dc; border-color: #4a4f57; }
   html:not([data-theme="light"]) .profile-card { background: #23272d; border-color: #4a4f57; color: #d6d9dc; }
   html:not([data-theme="light"]) .profile-card:hover { border-color: #5a9cf5; }
@@ -134,6 +155,8 @@ html { overflow-y: scroll; }
 html[data-theme="dark"] #filters select { background: #1e2127; color: #d6d9dc; border-color: #4a4f57; }
 html[data-theme="dark"] .rdb-icon-btn { background: #1e2127; color: #d6d9dc; border-color: #4a4f57; }
 html[data-theme="dark"] .rdb-icon-btn:hover { background: #2a3038; color: #fff; }
+html[data-theme="dark"] .rdb-help-link { background: #1e2127; color: #d6d9dc; border-color: #4a4f57; }
+html[data-theme="dark"] .rdb-help-link:hover { background: #2a3038; color: #fff; }
 html[data-theme="dark"] #pagination button { background: #1e2127; color: #d6d9dc; border-color: #4a4f57; }
 html[data-theme="dark"] .profile-card { background: #23272d; border-color: #4a4f57; color: #d6d9dc; }
 html[data-theme="dark"] .profile-card:hover { border-color: #5a9cf5; }
diff --git a/src/assets/js/reprodb-search.js b/src/assets/js/reprodb-search.js
index 4fab4a6b..bf676c18 100644
--- a/src/assets/js/reprodb-search.js
+++ b/src/assets/js/reprodb-search.js
@@ -29,6 +29,34 @@
     return (s || '').toLowerCase().replace(/[^a-z0-9 ]/g, ' ');
   }
 
+  function normalizeBadgeForFilter(v) {
+    var t = String(v || '').toLowerCase().replace('badges: ', '').trim();
+    if (t === 'reproducible') return 'reproduced';
+    if (t === 'artifact evaluated') return 'evaluated';
+    return t;
+  }
+
+  function extractBadgeKeywords(raw) {
+    var matches = String(raw || '').toLowerCase().match(/#[a-z]+/g) || [];
+    var seen = {};
+    var selected = [];
+    matches.forEach(function(tag) {
+      var t = tag.replace(/^#/, '');
+      if (t === 'reproducible') t = 'reproduced';
+      if (['available', 'reproduced', 'functional', 'reusable', 'evaluated'].indexOf(t) !== -1 && !seen[t]) {
+        seen[t] = true;
+        selected.push(t);
+      }
+    });
+    return selected;
+  }
+
+  function stripMagicKeywords(raw) {
+    return String(raw || '')
+      .replace(/#(unavailable|awarded|github|zenodo|nourl|artifinder|available|reproduced|reproducible|functional|reusable|evaluated)/gi, '')
+      .trim();
+  }
+
   function buildSearchIndex(data) {
     data.forEach(function(d) {
       d._search = normalizeText(d.title) + ' ' +
@@ -62,14 +90,16 @@
 
   function doSearch() {
     var raw = document.getElementById('searchBox').value.trim();
+    var rawLower = raw.toLowerCase();
     // Parse magic keywords
-    var onlyUnavail = raw.indexOf('#unavailable') !== -1;
-    var onlyAwarded = raw.indexOf('#awarded') !== -1;
-    var onlyGithub = raw.indexOf('#github') !== -1;
-    var onlyZenodo = raw.indexOf('#zenodo') !== -1;
-    var onlyNourl = raw.indexOf('#nourl') !== -1;
-    var onlyArtifinder = raw.indexOf('#artifinder') !== -1;
-    var cleaned = raw.replace(/#(unavailable|awarded|github|zenodo|nourl|artifinder)/g, '').trim();
+    var onlyUnavail = rawLower.indexOf('#unavailable') !== -1;
+    var onlyAwarded = rawLower.indexOf('#awarded') !== -1;
+    var onlyGithub = rawLower.indexOf('#github') !== -1;
+    var onlyZenodo = rawLower.indexOf('#zenodo') !== -1;
+    var onlyNourl = rawLower.indexOf('#nourl') !== -1;
+    var onlyArtifinder = rawLower.indexOf('#artifinder') !== -1;
+    var selectedBadges = extractBadgeKeywords(rawLower);
+    var cleaned = stripMagicKeywords(raw);
     var query = normalizeText(cleaned);
     var yearVal = document.getElementById('yearFilter').value;
     var venueVal = document.getElementById('venueFilter').value;
@@ -106,6 +136,13 @@
       if (onlyArtifinder) {
         if (String(d.source || '').toLowerCase() !== 'artifinder') return false;
       }
+      if (selectedBadges.length > 0) {
+        var recBadges = (d.badges || []).map(normalizeBadgeForFilter);
+        var hasAllSelectedBadges = selectedBadges.every(function(b) {
+          return recBadges.indexOf(b) !== -1;
+        });
+        if (!hasAllSelectedBadges) return false;
+      }
       if (terms.length === 0) return true;
       return terms.every(function(t) { return d._search.indexOf(t) !== -1; });
     });
@@ -175,7 +212,7 @@
     var status = document.getElementById('searchStatus');
     var hero = document.getElementById('search-hero');
     var query = document.getElementById('searchBox').value.trim();
-    var cleaned = query.replace(/#(unavailable|awarded|github|zenodo|nourl|artifinder)/g, '').trim();
+    var cleaned = stripMagicKeywords(query);
     var terms = normalizeText(cleaned).split(/\s+/).filter(function(t) { return t.length > 0; });
     var yearVal = document.getElementById('yearFilter').value;
     var venueVal = document.getElementById('venueFilter').value;
@@ -514,7 +551,7 @@
       // Re-render profile cards if the user is already searching
       if (filtered.length > 0 || document.getElementById('searchBox').value.trim().length >= 2) {
         var raw = document.getElementById('searchBox').value.trim();
-        var cleaned = raw.replace(/#(unavailable|awarded|github|zenodo|nourl|artifinder)/g, '').trim();
+        var cleaned = stripMagicKeywords(raw);
         var terms = normalizeText(cleaned).split(/\s+/).filter(function(t) { return t.length > 0; });
         renderProfileCards(raw, terms);
       }
diff --git a/src/index.md b/src/index.md
index 62ec5757..cf3c3101 100644
--- a/src/index.md
+++ b/src/index.md
@@ -45,6 +45,9 @@ skip_chartjs: true
           <button id="shareBtn" class="rdb-icon-btn" onclick="shareSearch()" title="Copy search link">
             <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M10 13a5 5 0 0 0 7.54.54l3-3a5 5 0 0 0-7.07-7.07l-1.72 1.71"/><path d="M14 11a5 5 0 0 0-7.54-.54l-3 3a5 5 0 0 0 7.07 7.07l1.71-1.71"/></svg>
           </button>
+          <a id="searchHelpLink" class="rdb-help-link" href="{{ '/methodology/search-keywords.html' | relative_url }}" title="Search keywords" aria-label="Search keywords help">
+            <i class="fas fa-hashtag" aria-hidden="true"></i>
+          </a>
         </span>
       </div>
     </div>
diff --git a/src/methodology/search-keywords.md b/src/methodology/search-keywords.md
index 07e65e78..dc82a681 100644
--- a/src/methodology/search-keywords.md
+++ b/src/methodology/search-keywords.md
@@ -14,6 +14,12 @@ The [search bar]({{ '/' | relative_url }}) supports special `#` keywords that fi
 | `#zenodo` | Artifacts hosted on Zenodo |
 | `#nourl` | Artifacts with no artifact URL recorded |
 | `#artifinder` | Results tagged as ArtiFinder-discovered only |
+| `#available` | Artifacts with the Available badge |
+| `#functional` | Artifacts with the Functional badge |
+| `#reproduced` | Artifacts with the Reproduced badge |
+| `#reproducible` | Alias for `#reproduced` |
+| `#reusable` | Artifacts with the Reusable badge |
+| `#evaluated` | Artifacts with the Artifact Evaluated badge |
 
 **Examples:**
 
@@ -22,6 +28,8 @@ The [search bar]({{ '/' | relative_url }}) supports special `#` keywords that fi
 - `#github #unavailable 2022` - GitHub-hosted artifacts from 2022 with dead links
 - `#zenodo fuzzing` - Zenodo-hosted fuzzing artifacts
 - `#artifinder malware` - ArtiFinder-tagged artifacts matching "malware"
+- `#available #functional` - artifacts that are both available and functional
+- `#reproducible usenixsec` - reproduced artifacts for USENIX Security
 
 Keywords also work alongside the year, venue, and area dropdown filters.