Perhaps you should try some spelling variations:
upon conversations » union conversations, open conversations, spoken conversations
christian upon » christians upon, christian union, christianity upon
9.13 germany » 9.14 germany, 9.15 germany, 9.16 germany
imf history » brief history
21 germany » 2.1 germany, 11 germany, 2 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 upon conversations %((21 germany) OR (9.13 germany)) %((2f history) OR (imf history)) %((2f 20th) OR (2.2 20th)) century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%christian upon conversations %((21 germany) or (9.13 germany)) %((2f history) or (imf history)) %((2f 20th) OR (2.2 20th)) century%22".
• Adding a wildcard symbol may retrieve word variants: %christian upon conversations %((21 germany) or (9.13 germany)) %((2f history) or (imf history)) %((2f 20th) OR (2.2 20th)) century%22*.