Perhaps you should try some spelling variations:
open conversations » agent conversations, roman conversations, content conversations
christian open » christian opened, christian open'd, christian popes
bief history » brief hystory, imf history, reef history
ref history » reef history, imf history, etf history
21 germany » 2.1 germany, 11 germany, 2 germany
2020 20th » 2020 16th, 2020 5th, 2020 2021
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 open conversations %21 germany %((ref history) OR (((bief history) OR (brief history)))) %((2.2 20th) OR (2020 20th)) century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%christian open conversations %21 germany %((ref history) or (((bief history) or (brief history)))) %((2.2 20th) OR (2020 20th)) century%22".
• Adding a wildcard symbol may retrieve word variants: %christian open conversations %21 germany %((ref history) or (((bief history) or (brief history)))) %((2.2 20th) OR (2020 20th)) century%22*.