Perhaps you should try some spelling variations:
2c john » c john, 23 john, 22 john
20 1724 » 20 1721, 20 1734, 20 1764
20 1794 » 28 1794, 2 1794, 20 1798
20 1714 » 20th 1714
3 john » 1 john
2 john » 1 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: %22brown%((((2c john) OR (3 john))) OR (((2 john) OR (4 john)))) %((20 1724) OR (((20 1794) OR (20 1714))))-1791%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22brown%((((2c john) or (3 john))) or (((2 john) OR (4 john)))) %((20 1724) or (((20 1794) or (20 1714))))-1791%22".
• Adding a wildcard symbol may retrieve word variants: %22brown%((((2c john) or (3 john))) or (((2 john) OR (4 john)))) %((20 1724) or (((20 1794) or (20 1714))))-1791%22*.