Perhaps you should try some spelling variations:
15 matthew » _ matthew, j matthew, k matthew
dr matthew » mr matthew, sir matthew, dr mayhew
12 early » 2 early, 11 early, 1722 early
2c 51 » 24 51, 21 51, 23 51
20 51 » 20 21, 24 51, 20 5
c 51 » c 1, c 5, _ 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 %((15 matthew) OR (dr matthew)) xxviii%((((2c 51) OR (20 51))) OR (c 51)) %2 sermons %12 early works to 1800%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22bible %2f n.t %((15 matthew) OR (dr matthew)) xxviii%((((2c 51) or (20 51))) or (c 51)) %2 sermons %12 early works to 1800%22".
• Adding a wildcard symbol may retrieve word variants: %22bible %2f n.t %((15 matthew) OR (dr matthew)) xxviii%((((2c 51) or (20 51))) or (c 51)) %2 sermons %12 early works to 1800%22*.