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 hystory, reef history, brief herstory
20th century » 18th century
ref history » reef history, etf history, tnf history
21 germany » 2 germany, 20 germany, _ germany
11 germany » 11 german, 1918 germany, _ germany
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)) %((((ref history) OR (bief history))) OR (((imf history) OR (brief 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)) %((((ref history) or (bief history))) or (((imf history) OR (brief history)))) %2.2 20th century%22".
• Adding a wildcard symbol may retrieve word variants: %christians upon conversations %((21 germany) or (11 germany)) %((((ref history) or (bief history))) or (((imf history) OR (brief history)))) %2.2 20th century%22*.