Perhaps you should try some spelling variations:
2f germany » 20 germany, 25 germany, 27 germany
26 germany » 6 germany, 20 germany, 25 germany
21 germany » 2.1 germany, 11 germany, 20 germany
2 germany » 12 germany, 7 germany, 2 german
2023 20th » 2023 26th, 2023 10th, 2020 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 (26 germany))) OR (((21 germany) OR (2 germany)))) %brief history %((2023 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 (26 germany))) or (((21 germany) or (2 germany)))) %brief history %((2023 20th) or (2020 5th)) century%22".
• Adding a wildcard symbol may retrieve word variants: %22agriculture and state %((((2f germany) OR (26 germany))) or (((21 germany) or (2 germany)))) %brief history %((2023 20th) or (2020 5th)) century%22*.