Perhaps you should try some spelling variations:
2f sermons » 2 sermons, 24 sermons, 20 sermons
25 matthew » 2 matthew, 22 matthew, _ matthew
15 matthew » _ matthew, 6 matthew, 8 matthew
21 sermons » 2 sermons, 1 sermons, 6 sermons
2f matthew » 2 matthew, 22 matthew, _ matthew
20 early » 10 early, 1820 early, 1720 early
2f early » 21 early, ef early, f early
2c 51 » 24 51, c 51, 20 51

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)))) xxv%2c 51 %((2f sermons) OR (21 sermons)) %((2f early) OR (20 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)))) xxv%2c 51 %((2f sermons) or (21 sermons)) %((2f early) or (20 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)))) xxv%2c 51 %((2f sermons) or (21 sermons)) %((2f early) or (20 early)) works to 1800%22*.