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, 1 germany
11 germany » 11 german, 1918 germany, 7 germany
2020 20th » 2020 16th, 2020 2021, 2020 5th

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)) %2020 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)) %2020 20th century%22*.