Perhaps you should try some spelling variations:
22great britain » xgreat britain, zgreat britain, great brittain
2f foreign » 2 foreign, 24 foreign, 22 foreign
23 foreign » 3 foreign, 2 foreign, 13 foreign
2f denmark » 2 denmark, 22 denmark, 23 denmark
2.1 early » 1.1 early, 11 early
20 early » 10 early, 1820 early, 1720 early
21 early » 11 early, 1.1 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: %((22great britain) OR (great britain)) %((2f foreign) OR (23 foreign)) relations %2f denmark %((20 early) OR (((21 early) OR (2.1 early)))) works to 1800%22*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((22great britain) or (great britain)) %((2f foreign) OR (23 foreign)) relations %2f denmark %((20 early) or (((21 early) or (2.1 early)))) works to 1800%22*".