Perhaps you should try some spelling variations:
22great britain » great britain, xgreat britain, zgreat britain
ref history » reef history, brief history, bief history
2f history » 2.1 history, imf history, etf history
2f george » 26 george, 2 george, 22 george
21 early » 2.1 early, 11 early, 1.1 early
2c 1727 » 29 1727, 28 1727, 22 1727

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: %22great britain %((2f history) OR (ref history)) %2f george iii%2c 1727-1760 %((21 early) OR (1 early)) works to 1800%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22great britain %((2f history) or (ref history)) %2f george iii%2c 1727-1760 %((21 early) OR (1 early)) works to 1800%22".
• Adding a wildcard symbol may retrieve word variants: %22great britain %((2f history) or (ref history)) %2f george iii%2c 1727-1760 %((21 early) OR (1 early)) works to 1800%22*.