Perhaps you should try some spelling variations:
upon conversations » union conversations, open conversations, spoken conversations
christian upon » christians upon, christian union, christianity upon
2.1 germany » 2017 germany, 9.13 germany, 9.14 germany
ref history » reef history, brief history, bief history
imf history » brief history
21 germany » 11 germany, 2 germany, 20 germany
2020 4th » 2020 5th

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 upon conversations %((21 germany) OR (2.1 germany)) %((ref history) OR (imf history)) %((2020 4th) OR (2020 16th)) century%22.
• Adding a wildcard symbol may retrieve word variants: %christian upon conversations %((21 germany) or (2.1 germany)) %((ref history) or (imf history)) %((2020 4th) or (2020 16th)) century%22*.