Perhaps you should try some spelling variations:
1770 early » 1778 early
2 fission » _ fission, a fission, 3 fission
2f early » 24 early, 21 early, 23 early
20 early » 1820 early, 1720 early
22 early » 2 early, 12 early, 1722 early
10 early » 1800 early, 1820 early, 7 early

Try widening your search to All Fields.

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 fission %((((((2f early) OR (20 early))) OR (22 early))) OR (((10 early) OR (1770 early)))) works to 1800%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22ethiopia %2 fission %((((((2f early) or (20 early))) or (22 early))) or (((10 early) OR (1770 early)))) works to 1800%22".
• Adding a wildcard symbol may retrieve word variants: %22ethiopia %2 fission %((((((2f early) or (20 early))) or (22 early))) or (((10 early) OR (1770 early)))) works to 1800%22*.