Perhaps you should try some spelling variations:
imf history » brief history
2019 20th » 2019 4th, 2019 6th, 2019 5th
2020 5th » 2020 16th
90 20th » 20 20th, 1990 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 %7 germany %imf history %((((2019 20th) OR (2020 5th))) OR (((90 20th) OR (94 20th)))) century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22agriculture and state %7 germany %imf history %((((2019 20th) or (2020 5th))) or (((90 20th) OR (94 20th)))) century%22".
• Adding a wildcard symbol may retrieve word variants: %22agriculture and state %7 germany %imf history %((((2019 20th) or (2020 5th))) or (((90 20th) OR (94 20th)))) century%22*.