Perhaps you should try some spelling variations:
25 germany » 5 germany, 2 germany, 21 germany
18 germany » 11 germany, 12 germany, 14 germany
26 germany » 6 germany, 2 germany, 21 germany
20 germany » 2 germany, _ germany, 7 germany
27 germany » 7 germany, 2 germany, 17 germany
8 germany » _ germany, 7 germany, 1918 germany
2f 20th » 2.2 20th
20 20th » 90 20th, 2019 20th, 2020 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 %((((((((27 germany) OR (20 germany))) OR (26 germany))) OR (25 germany))) OR (((8 germany) OR (18 germany)))) %((imf history) OR (brief history)) %((2f 20th) OR (20 20th)) century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22agriculture and state %((((((((27 germany) OR (20 germany))) or (26 germany))) or (25 germany))) or (((8 germany) or (18 germany)))) %((imf history) or (brief history)) %((2f 20th) or (20 20th)) century%22".
• Adding a wildcard symbol may retrieve word variants: %22agriculture and state %((((((((27 germany) OR (20 germany))) or (26 germany))) or (25 germany))) or (((8 germany) or (18 germany)))) %((imf history) or (brief history)) %((2f 20th) or (20 20th)) century%22*.