Perhaps you should try some spelling variations:
2c english » 2 english, 21 english, 20 english
c english » _ english, 2 english, 1 english
2f texts » 20 texts, ii texts, i texts
20 tests » 10 tests, 20 test, 20 teeth
2 texts » 2 text, 2 texte, i texts
_ texts » _ text

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: %22hymns%((2c english) OR (c english)) %((((((2f texts) OR (2 texts))) OR (_ texts))) OR (20 tests))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22hymns%((2c english) or (c english)) %((((((2f texts) OR (2 texts))) or (_ texts))) or (20 tests))%22".
• Adding a wildcard symbol may retrieve word variants: %22hymns%((2c english) or (c english)) %((((((2f texts) OR (2 texts))) or (_ texts))) or (20 tests))%22*.