change strategy for searching: use the AND between words, instead of OR

src/Bundle/ChillThirdPartyBundle/Search/ThirdPartyApiSearch.php

@@ -109,11 +109,11 @@ class ThirdPartyApiSearch implements SearchApiInterface
         }
 
         $query
-            ->setSelectPertinence(implode(' + ', $pertinence), array_merge(
+            ->setSelectPertinence(implode(' + ', $pertinence).' + 1', array_merge(
                 [],
                 ...$pertinenceArgs
             ))
-            ->andWhereClause(implode(' OR ', $wheres), array_merge(
+            ->andWhereClause(implode(' AND ', $wheres), array_merge(
                 [],
                 ...$whereArgs
             ));