Perhaps you should try some spelling variations:
zgreat britain » great britain, xgreat britain, great brittain
2f foreign » 2 foreign, 23 foreign, 22 foreign
24 foreign » 4 foreign, 2 foreign, 14 foreign
2f denmark » 2 denmark, 22 denmark, 23 denmark
13 denmark » 3 denmark, 1 denmark, _ denmark
2f early » 24 early, 20 early, 21 early

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: %zgreat britain %((2f foreign) OR (24 foreign)) relations %((2f denmark) OR (13 denmark)) %2f early works to 1800%22*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%zgreat britain %((2f foreign) OR (24 foreign)) relations %((2f denmark) or (13 denmark)) %2f early works to 1800%22*".