Perhaps you should try some spelling variations:
curious conversations » curious conversion, courageous conversations, conscious conversations
serious conversation » serious conideration, versus conversation, ingenious conversation
20th century » 18th century
etf history » reef history, imf history, ref history
21 germany » 11 germany, 2 germany, 20 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: %22christian ((curious conversations) OR (serious conversation)) %((21 germany) OR (7 germany)) %etf history %2.2 20th century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22christian ((curious conversations) OR (serious conversation)) %((21 germany) or (7 germany)) %etf history %2.2 20th century%22".
• Adding a wildcard symbol may retrieve word variants: %22christian ((curious conversations) OR (serious conversation)) %((21 germany) or (7 germany)) %etf history %2.2 20th century%22*.