Perhaps you should try some spelling variations:
21 bishop » 11 bishop, 128 bishop, _ bishop
25 saint » 5 saint, 2015 saint, 25 saving
15 saint » 18 saint, 5 saint, 10 saint
21 saint » 2 saint, 2013 saint, 2015 saint
c bishop » c bishops, _ bishop, d bishop
a bishop » _ bishop

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 %((((((25 saint) OR (15 saint))) OR (1 saint))) OR (21 saint))%((((2((c bishop) OR (a bishop))) OR (((c bishop) OR (a bishop))))) OR (21 bishop)) of smyrna%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22polycarp %((((((25 saint) or (15 saint))) or (1 saint))) or (21 saint))%((((2((c bishop) OR (a bishop))) or (((c bishop) OR (a bishop))))) or (21 bishop)) of smyrna%22".
• Adding a wildcard symbol may retrieve word variants: %22polycarp %((((((25 saint) or (15 saint))) or (1 saint))) or (21 saint))%((((2((c bishop) OR (a bishop))) or (((c bishop) OR (a bishop))))) or (21 bishop)) of smyrna%22*.