Perhaps you should try some spelling variations:
christian unity » christian laity, christian divinity, christian charity
1918 germany » 8 germany
20th century » 18th century
ref history » reef history, brief history, bief history
21 germany » 11 germany, 2 germany, 20 germany
2.2 20th » 2020 20th, 2023 20th, 2021 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 (1918 germany)) %ref history %2.2 20th century%22.
• Adding a wildcard symbol may retrieve word variants: %((christian unity) or (christian union)) conversations %((21 germany) or (1918 germany)) %ref history %2.2 20th century%22*.