Perhaps you should try some spelling variations:
27 estate » 7 estate, 1627 estate
21 john » 1 john, 11 john, 23 john
15 john » 1 john, 5 john, 10 john
12 john » 2 john, 11 john
2c john » 23 john, 25 john, 26 john
20 john » 10 john, 23 john, 25 john
24 john » 14 john, 23 john, 25 john
22 john » 2 john, 23 john
c john » 1 john, 3 john, 5 john
4 john » 1 john

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 (c john))) OR (20 john))) OR (24 john))) OR (((((21 john) OR (((22 john) OR (12 john))))) OR (15 john))))) OR (4 john)) %27 estate%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22orlebar%((((((((((2c john) OR (c john))) or (20 john))) or (24 john))) or (((((21 john) or (((22 john) or (12 john))))) or (15 john))))) or (4 john)) %27 estate%22".
• Adding a wildcard symbol may retrieve word variants: %22orlebar%((((((((((2c john) OR (c john))) or (20 john))) or (24 john))) or (((((21 john) or (((22 john) or (12 john))))) or (15 john))))) or (4 john)) %27 estate%22*.