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