- remove escaping as it only allows for exact matches

Lib/Search/BookSearch.php

@@ -52,13 +52,11 @@ class BookSearch
             $queryText = \SolrUtils::escapeQueryChars($queryText);
         }
 
-        $queryText = "\"$queryText\"";
-
         if (strlen($queryField) > 0) {
-            $queryText = "$queryField:$queryText";
+            $queryText = "$queryField:\"$queryText\"";
         }
 
-        $this->queryParts[] = "$queryText";
+        $this->queryParts[] = $queryText;
     }
 
     public function addSortField($field, $order = \SolrQuery::ORDER_DESC)