Perhaps you should try some spelling variations:
25 germany » 2 germany, 21 germany, 26 germany
20 germany » 2 germany, 6 germany, 4 germany
2f history » 2.1 history, imf history, etf history
8 germany » 1918 germany
5 germany » 5 german, 6 germany, 1945 germany
2f 20th » 2.2 20th
20 20th » 90 20th, 2019 20th, 2020 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 %((25 germany) OR (((((((20 germany) OR (8 germany))) OR (5 germany))) OR (7 germany)))) %2f history %((2f 20th) OR (20 20th)) century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22agriculture and state %((25 germany) or (((((((20 germany) OR (8 germany))) or (5 germany))) or (7 germany)))) %2f history %((2f 20th) or (20 20th)) century%22".
• Adding a wildcard symbol may retrieve word variants: %22agriculture and state %((25 germany) or (((((((20 germany) OR (8 germany))) or (5 germany))) or (7 germany)))) %2f history %((2f 20th) or (20 20th)) century%22*.