Perhaps you should try some spelling variations:
matthew xiii » matthew xvi, matthew xxiv, matthew xxv
matthew xxii » matthew xxv, matthew xvi
21 sermons » 2 sermons, 1 sermons, 6 sermons
22 early » 2 early, 12 early, 1722 early
11 early » 1 early, 7 early, 8 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 %22 ((matthew xiii) OR (matthew xxii))%2c 51 %21 sermons %((22 early) OR (((11 early) OR (1791 early)))) works to 1800%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22bible %2f n.t %22 ((matthew xiii) OR (matthew xxii))%2c 51 %21 sermons %((22 early) or (((11 early) or (1791 early)))) works to 1800%22".
• Adding a wildcard symbol may retrieve word variants: %22bible %2f n.t %22 ((matthew xiii) OR (matthew xxii))%2c 51 %21 sermons %((22 early) or (((11 early) or (1791 early)))) works to 1800%22*.