Perhaps you should try some spelling variations:
2f matthew » 2 matthew, 22 matthew, _ matthew
25 matthew » 2 matthew, 22 matthew, _ matthew
15 matthew » _ matthew, j matthew, k matthew
2f sermons » 21 sermons, 24 sermons, 20 sermons
2f early » 24 early, 20 early, 21 early
20 51 » 20 21, 24 51, 20 5
_ 51 » _ 1, _ 5, _ 5g

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: %22bible %2f n.t %((2f matthew) OR (((25 matthew) OR (15 matthew)))) xxviii%((20 51) OR (_ 51)) %((2f sermons) OR (2 sermons)) %2f early works to 1800%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22bible %2f n.t %((2f matthew) or (((25 matthew) or (15 matthew)))) xxviii%((20 51) or (_ 51)) %((2f sermons) OR (2 sermons)) %2f early works to 1800%22".
• Adding a wildcard symbol may retrieve word variants: %22bible %2f n.t %((2f matthew) or (((25 matthew) or (15 matthew)))) xxviii%((20 51) or (_ 51)) %((2f sermons) OR (2 sermons)) %2f early works to 1800%22*.