Perhaps you should try some spelling variations:
20th century » 18th century
imf history » brief history
2 germany » 2 german, 8 germany, 5 germany
12 german » 2 german, 2012 german
2019 20th » 2019 4th, 2019 6th, 2019 5th

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) OR (((2 germany) OR (12 german)))) %imf history %2019 20th century%22.
• Adding a wildcard symbol may retrieve word variants: %22agriculture and state %((7 germany) or (((2 germany) or (12 german)))) %imf history %2019 20th century%22*.