Perhaps you should try some spelling variations:
_ estimate » _ estimation, _ estimating
24 estate » 4 estate, 24 estimate, 1824 estates
2c john » c john, 25 john, 20 john
22 john » 12 john
21 john » 11 john, 25 john
23 john » 3 john, 13 john
2 john » 3 john, 4 john, 5 john

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: %22orlebar%((((((((2c john) OR (22 john))) OR (21 john))) OR (1 john))) OR (((2 john) OR (23 john)))) %((24 estate) OR (_ estimate))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22orlebar%((((((((2c john) OR (22 john))) or (21 john))) or (1 john))) or (((2 john) or (23 john)))) %((24 estate) or (_ estimate))%22".
• Adding a wildcard symbol may retrieve word variants: %22orlebar%((((((((2c john) OR (22 john))) or (21 john))) or (1 john))) or (((2 john) or (23 john)))) %((24 estate) or (_ estimate))%22*.