Perhaps you should try some spelling variations:
22great britain » great britain, xgreat britain, zgreat britain
2f denmark » 2 denmark, 22 denmark, 23 denmark
2 foreign » 3 foreign, 4 foreign, 5 foreign
2f early » 24 early, 20 early, 23 early
22 early » 2 early, 12 early, 1722 early
21 early » 2.1 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 %2 foreign relations %2f denmark %((((2f early) OR (22 early))) OR (((21 early) OR (1 early)))) works to 1800%22*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22great britain %2 foreign relations %2f denmark %((((2f early) OR (22 early))) or (((21 early) or (1 early)))) works to 1800%22*".