Perhaps you should try some spelling variations:
21 bishop » 11 bishop, 128 bishop, _ bishop
25 saint » 15 saint, 2015 saint, 25 saving
21 saint » 2013 saint, 2015 saint, 2021 saint
2 saint » 2 saints, 2 salient, 2 saving
5 saint » 5 saints, 5 salient, 5 saving

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: %22polycarp %((((((_ saint) OR (((2 saint) OR (1 saint))))) OR (((25 saint) OR (5 saint))))) OR (21 saint))%21 bishop of smyrna%22.
• Adding a wildcard symbol may retrieve word variants: %22polycarp %((((((_ saint) or (((2 saint) or (1 saint))))) or (((25 saint) or (5 saint))))) or (21 saint))%21 bishop of smyrna%22*.