Perhaps you should try some spelling variations:
zgreat britain » xgreat britain, great britains, great britiain
great brittain » great britian
2f foreign » 2 foreign, 23 foreign, 24 foreign
2f denmark » 2 denmark, 2.3 denmark, 2.4 denmark
22 denmark » 2 denmark, 8.2 denmark, 1.2 denmark
23 denmark » 2.3 denmark, 3 denmark, 13 denmark
2f early » 20 early, 21 early, ef 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) OR (((great brittain) OR (great britain's)))) %2f foreign relations %((((2f denmark) OR (22 denmark))) OR (23 denmark)) %2f early works to 1800%22*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((zgreat britain) or (((great brittain) or (great britain's)))) %2f foreign relations %((((2f denmark) OR (22 denmark))) or (23 denmark)) %2f early works to 1800%22*".