Perhaps you should try some spelling variations:
22great britain » xgreat britain, zgreat britain, great brittain
ref history » reef history, brief history, bief history
2f george » 2 george, 22 george, 29 george
26 george » 36 george, 1 george, 3 george
2f early » 24 early, 20 early, 21 early
2c 1727 » 29 1727, 28 1727, 22 1727

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: %((22great britain) OR (great britain)) %ref history %((2f george) OR (26 george)) iii%2c 1727-1760 %2f early works to 1800%22*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((22great britain) OR (great britain)) %ref history %((2f george) or (26 george)) iii%2c 1727-1760 %2f early works to 1800%22*".