Fix for result string with empty main text

Author: Coccodrillo

library/src/main/res/values/strings.xml

@@ -7,7 +7,8 @@
     <string name="apply_to_search">Press Apply to refresh the view</string>
     <string name="cancel">Cancel</string>
     <string name="apply">Apply</string>
-    <string name="results_while_searching">results while searching for \"%1$s\"</string>
+    <string name="results_while_searching_for">Results while searching for expression \"%1$s\" %2$s</string>
+    <string name="results_while_searching">Results while searching %1$s</string>
     <plurals name="results_for_this_query">
         <item quantity="one" formatted="true">%1$d result found for this query</item>
         <item quantity="other" formatted="true">%1$d results found for this query</item>