Perhaps you should try some spelling variations:
20th century » 18th century
imf history » brief history
21 germany » 2 germany, 20 germany, 7 germany
11 germany » 11 german, 7 germany, 5 germany
8 germany » 7 germany
20 20th » 90 20th, 2019 20th, 2020 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 %((((8 germany) OR (1918 germany))) OR (((21 germany) OR (11 germany)))) %imf history %20 20th century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22agriculture and state %((((8 germany) OR (1918 germany))) or (((21 germany) or (11 germany)))) %imf history %20 20th century%22".
• Adding a wildcard symbol may retrieve word variants: %22agriculture and state %((((8 germany) OR (1918 germany))) or (((21 germany) or (11 germany)))) %imf history %20 20th century%22*.