Perhaps you should try some spelling variations:
2f matthew » 2 matthew, 22 matthew, _ matthew
25 matthew » 15 matthew, 2 matthew, 22 matthew
2f sermons » 2 sermons, 21 sermons, 24 sermons
2f early » 24 early, 21 early, 22 early
20 early » 10 early, 1720 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)) xxv%2c 51 %2f sermons %((2f early) OR (((20 early) OR (1820 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)) xxv%2c 51 %2f sermons %((2f early) or (((20 early) OR (1820 early)))) works to 1800%22".
• Adding a wildcard symbol may retrieve word variants: %22bible %2f n.t %((2f matthew) or (25 matthew)) xxv%2c 51 %2f sermons %((2f early) or (((20 early) OR (1820 early)))) works to 1800%22*.