Perhaps you should try some spelling variations:
21 sermons » 2 sermons, 1 sermons, 6 sermons
2 matthew » 22 matthew, 25 matthew, 42 matthew
2.1 early » 11 early
1.1 early » 11 early, 1791 early, 1771 early
21 early » 11 early
2c 51 » 24 51, c 51, 20 51

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 %((_ matthew) OR (2 matthew)) xxviii%2c 51 %21 sermons %((21 early) OR (((2.1 early) OR (1.1 early)))) works to 1800%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22bible %2f n.t %((_ matthew) or (2 matthew)) xxviii%2c 51 %21 sermons %((21 early) or (((2.1 early) OR (1.1 early)))) works to 1800%22".
• Adding a wildcard symbol may retrieve word variants: %22bible %2f n.t %((_ matthew) or (2 matthew)) xxviii%2c 51 %21 sermons %((21 early) or (((2.1 early) OR (1.1 early)))) works to 1800%22*.