Perhaps you should try some spelling variations:
2 fiction » 2 fixation, 1792 fiction, 1902 fiction
2 fission » _ fission, a fission, 3 fission
23 early » 2.3 early, 3 early, 13 early
22 early » 2 early, 12 early, 1722 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: %22ethiopia %((2 fiction) OR (2 fission)) %((((23 early) OR (22 early))) OR (20 early)) works to 1800%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22ethiopia %((2 fiction) OR (2 fission)) %((((23 early) or (22 early))) or (20 early)) works to 1800%22".
• Adding a wildcard symbol may retrieve word variants: %22ethiopia %((2 fiction) OR (2 fission)) %((((23 early) or (22 early))) or (20 early)) works to 1800%22*.