Perhaps you should try some spelling variations:
upon conversations » union conversations, open conversations, spoken conversations
christians upon » christians among, christians from, christians being
bief history » brief history, brief hystory, reef history
20th century » 18th century
ref history » reef history, brief history, etf history
imf history » brief history
21 germany » 2 germany, 20 germany, _ germany
11 germany » 1918 germany, _ germany, 7 germany
11 german » 1 german
2.2 20th » 2020 20th, 2023 20th, 2021 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: %christians upon conversations %((21 germany) OR (((11 germany) OR (11 german)))) %((((ref history) OR (bief history))) OR (imf history)) %2.2 20th century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%christians upon conversations %((21 germany) or (((11 germany) OR (11 german)))) %((((ref history) or (bief history))) or (imf history)) %2.2 20th century%22".
• Adding a wildcard symbol may retrieve word variants: %christians upon conversations %((21 germany) or (((11 germany) OR (11 german)))) %((((ref history) or (bief history))) or (imf history)) %2.2 20th century%22*.