Perhaps you should try some spelling variations:
4 estimated » 4 estimates, 3.4 estimates, 7.4 estimates
_ estimated » _ estimate, _ estimates, _ estimation
4 estimate » 4 estimates, _ estimate, 2 estimate
2f estate » 24 estate, 27 estate, _ estate
c john » 1 john, 4 john, 3 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%c john %((2f estate) OR (((((4 estimated) OR (_ estimated))) OR (4 estimate))))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22orlebar%c john %((2f estate) or (((((4 estimated) OR (_ estimated))) or (4 estimate))))%22".
• Adding a wildcard symbol may retrieve word variants: %22orlebar%c john %((2f estate) or (((((4 estimated) OR (_ estimated))) or (4 estimate))))%22*.