Perhaps you should try some spelling variations:
upon conversations » union conversations, open conversations, spoken conversations
christians upon » christians among, christians from, christians being
20th century » 18th century
etf history » reef history, imf history, ref history
2f germany » 2 germany, 20 germany, 21 germany
2021 20th » 2021 24th, 2020 20th, 2021 10th
5 german » 3 german

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 %((2f germany) OR (5 german)) %((etf history) OR (brief history)) %2021 20th century%22.
• Adding a wildcard symbol may retrieve word variants: %christians upon conversations %((2f germany) or (5 german)) %((etf history) or (brief history)) %2021 20th century%22*.