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