Perhaps you should try some spelling variations:
christian unity » christian laity, christian divinity, christian charity
21 germany » 2.1 germany, 11 germany, 2 germany
2f history » 2.1 history, imf history, etf history
11 german » 1 german
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: %((christian unity) OR (christian union)) conversations %((21 germany) OR (11 german)) %2f history %((2.2 20th) OR (2020 20th)) century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((christian unity) OR (christian union)) conversations %((21 germany) or (11 german)) %2f history %((2.2 20th) or (2020 20th)) century%22".
• Adding a wildcard symbol may retrieve word variants: %((christian unity) OR (christian union)) conversations %((21 germany) or (11 german)) %2f history %((2.2 20th) or (2020 20th)) century%22*.