Perhaps you should try some spelling variations:
union conversations » win conversations, design conversations, driven conversations
2.1 history » 1.1 history, 601 history
2f germany » 2 germany, 20 germany, 21 germany
2.2 18th » 2021 18th, 2022 18th, 2023 18th

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)) %((2.1 history) OR (((imf history) OR (brief history)))) %2.2 18th century%22.
• Adding a wildcard symbol may retrieve word variants: %christian union conversations %((2f germany) or (7 germany)) %((2.1 history) or (((imf history) or (brief history)))) %2.2 18th century%22*.