Perhaps you should try some spelling variations:
2015 saint » 2013 saint, 2015 san, 2015 joint
15 saint » 1 saint, 18 saint, 5 saint
2_ saint » 2 saint, 21 saint, de saint
25 saint » 5 saint, 25 saving, 25 saying
c bishop » c bishops, _ bishop, a 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 %((((15 saint) OR (_ saint))) OR (((((2_ saint) OR (25 saint))) OR (2015 saint))))%c bishop of smyrna%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22polycarp %((((15 saint) or (_ saint))) or (((((2_ saint) OR (25 saint))) or (2015 saint))))%c bishop of smyrna%22".
• Adding a wildcard symbol may retrieve word variants: %22polycarp %((((15 saint) or (_ saint))) or (((((2_ saint) OR (25 saint))) or (2015 saint))))%c bishop of smyrna%22*.