diff --git a/src/dug/core/async_search.py b/src/dug/core/async_search.py
index d0140f24..bcca8797 100644
--- a/src/dug/core/async_search.py
+++ b/src/dug/core/async_search.py
@@ -97,6 +97,14 @@ async def search_concepts(self, query, offset=0, size=None, fuzziness=1, prefix_
         """
         query = {
             "bool": {
+                "filter": {
+                    "bool": {
+                        "must": [
+                            {"wildcard": {"description": "?*"}},
+                            {"wildcard": {"name": "?*"}}
+                        ]
+                    }
+                },
                 "should": [
                     {
                         "match_phrase": {
@@ -184,7 +192,8 @@ async def search_concepts(self, query, offset=0, size=None, fuzziness=1, prefix_
                             }
                         }
                     }
-                ]
+                ],
+                "minimum_should_match": 1,
             }
         }
         body = json.dumps({'query': query})