Perhaps you should try some spelling variations:
9.13 germany » 9.14 germany, 9.15 germany, 9.16 germany
2.1 germany » 21 germany, 2017 germany, 9.14 germany
imf history » brief history
2f germany » 2 germany, 20 germany, 21 germany
2020 20th » 2020 16th, 2020 2021, 2020 5th
2f 20th » 20 20th, 2.2 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 %((2f germany) OR (((2.1 germany) OR (9.13 germany)))) %imf history %((2f 20th) OR (2020 20th)) century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22agriculture and state %((2f germany) or (((2.1 germany) OR (9.13 germany)))) %imf history %((2f 20th) or (2020 20th)) century%22".
• Adding a wildcard symbol may retrieve word variants: %22agriculture and state %((2f germany) or (((2.1 germany) OR (9.13 germany)))) %imf history %((2f 20th) or (2020 20th)) century%22*.