Perhaps you should try some spelling variations:
zgreat britain » xgreat britain, great brittain, great britains
2f foreign » 23 foreign, 24 foreign, 22 foreign
2f denmark » 2 denmark, 22 denmark, 23 denmark
2 foreign » 3 foreign, 4 foreign, 5 foreign
2f early » 21 early, ef early, f early
20 early » 10 early, 1820 early, 1720 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 britain)) %((2f foreign) OR (2 foreign)) relations %2f denmark %((2f early) OR (20 early)) works to 1800%22*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((zgreat britain) or (great britain)) %((2f foreign) or (2 foreign)) relations %2f denmark %((2f early) OR (20 early)) works to 1800%22*".