Perhaps you should try some spelling variations:
2.1 germany » 2017 germany, 9.13 germany, 9.14 germany
imf history » brief history
20 germany » 2 germany, 7 germany, 8 germany
21 germany » 11 germany, 2 germany, 7 germany
2019 20th » 2019 4th, 2019 6th, 2019 16th
2019 5th » 2019 4th, 2019 6th
2f 20th » 20 20th, 2.2 20th

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 %((20 germany) OR (((2.1 germany) OR (21 germany)))) %imf history %((2f 20th) OR (((2019 20th) OR (2019 5th)))) century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22agriculture and state %((20 germany) or (((2.1 germany) or (21 germany)))) %imf history %((2f 20th) or (((2019 20th) OR (2019 5th)))) century%22".
• Adding a wildcard symbol may retrieve word variants: %22agriculture and state %((20 germany) or (((2.1 germany) or (21 germany)))) %imf history %((2f 20th) or (((2019 20th) OR (2019 5th)))) century%22*.