Perhaps you should try some spelling variations:
imf history » brief history
21 germany » 2.1 germany, 11 germany, 2 germany
2f history » 2.1 history, etf history, ref history
1990 20th » 1995 20th, 1999 20th, 1994 20th
20 20th » 2019 20th, 2020 20th, 2023 20th
94 20th » 4 20th, 94 24th, 1994 20th

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: %22agriculture AND state %21 germany %((2f history) OR (imf history)) %((20 20th) OR (((((90 20th) OR (1990 20th))) OR (94 20th)))) century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22agriculture and state %21 germany %((2f history) or (imf history)) %((20 20th) or (((((90 20th) OR (1990 20th))) or (94 20th)))) century%22".
• Adding a wildcard symbol may retrieve word variants: %22agriculture and state %21 germany %((2f history) or (imf history)) %((20 20th) or (((((90 20th) OR (1990 20th))) or (94 20th)))) century%22*.