Perhaps you should try some spelling variations:
reef history » brief history, reeves history, reef fishery
ref history » brief history, bief history, imf history
21 public » 2 public, 1 public, 11 public
2c public » 2 public, 22 public, c public
13 green » 3 green
23 green » 3 green
2f 1688 » 2 1688, 22 1688, 24 1688

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: %22finance%((2c public) OR (21 public)) %((23 green) OR (13 green)) britain %((ref history) OR (reef history)) %2f 1688-1815%22*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22finance%((2c public) or (21 public)) %((23 green) or (13 green)) britain %((ref history) OR (reef history)) %2f 1688-1815%22*".