Perhaps you should try some spelling variations:
2f fiction » f fiction, 2 fiction, la fiction
1722 early » 1727 early
1710 early » 1714 early, 1715 early, 1770 early
10 early » 1800 early, 1820 early, 1770 early
f early » ef early, sf early, 7 early

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "%22ethiopia %2f fiction %((((f early) OR (1722 early))) OR (((10 early) OR (1710 early)))) works to 1800%22".
• Adding a wildcard symbol may retrieve word variants: %22ethiopia %2f fiction %((((f early) OR (1722 early))) OR (((10 early) OR (1710 early)))) works to 1800%22*.