Perhaps you should try some spelling variations:
128 bishop » 1748 bishop, 1725 bishop, 11 bishop
21 bishop » 11 bishop, _ bishop, d bishop
15 saint » 18 saint, 10 saint, 14 saint
21 saint » 2 saint, 25 saint, 2013 saint
a bishop » _ bishop
5 saint » 5 saints, 2 saint, 5 salient

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 %((((((5 saint) OR (15 saint))) OR (1 saint))) OR (21 saint))%((128 bishop) OR (((21 bishop) OR (a bishop)))) of smyrna%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22polycarp %((((((5 saint) or (15 saint))) or (1 saint))) or (21 saint))%((128 bishop) or (((21 bishop) OR (a bishop)))) of smyrna%22".
• Adding a wildcard symbol may retrieve word variants: %22polycarp %((((((5 saint) or (15 saint))) or (1 saint))) or (21 saint))%((128 bishop) or (((21 bishop) OR (a bishop)))) of smyrna%22*.