Perhaps you should try some spelling variations:
2f germany » 2 germany, 25 germany, 26 germany
20 germany » 2 germany, 7 germany, 8 germany
21 germany » 2.1 germany, 11 germany, 2 germany
2.2 20th » 2020 20th, 2023 20th, 2021 20th
2020 5th » 2020 16th

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 (20 germany))) OR (21 germany)) %((imf history) OR (brief history)) %((2.2 20th) OR (2020 5th)) century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22agriculture and state %((((2f germany) OR (20 germany))) or (21 germany)) %((imf history) or (brief history)) %((2.2 20th) or (2020 5th)) century%22".
• Adding a wildcard symbol may retrieve word variants: %22agriculture and state %((((2f germany) OR (20 germany))) or (21 germany)) %((imf history) or (brief history)) %((2.2 20th) or (2020 5th)) century%22*.