Perhaps you should try some spelling variations:
22christian union » christian unity, christian upon
2.1 germany » 21 germany, 2017 germany, 9.13 germany
2f history » imf history, etf history, ref history
2 germany » 7 germany, 2 german, 8 germany
2020 20th » 2020 16th, 2020 2021, 2020 5th
2.2 20th » 2023 20th, 2021 20th, 2022 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: %((22christian union) OR (christian union)) conversations %((2 germany) OR (2.1 germany)) %2f history %((2.2 20th) OR (2020 20th)) century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((22christian union) OR (christian union)) conversations %((2 germany) or (2.1 germany)) %2f history %((2.2 20th) or (2020 20th)) century%22".
• Adding a wildcard symbol may retrieve word variants: %((22christian union) OR (christian union)) conversations %((2 germany) or (2.1 germany)) %2f history %((2.2 20th) or (2020 20th)) century%22*.