Perhaps you should try some spelling variations:
curious conversations » curious conversion, serious conversation, courageous conversations
union conversations » win conversations, design conversations, driven conversations
21 germany » 11 germany, 2 germany, 20 germany
2f history » imf history, etf history, ref history

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 ((union conversations) OR (curious conversations)) %((21 germany) OR (7 germany)) %2f history %2023 ((20th century) OR (18th century))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22christian ((union conversations) or (curious conversations)) %((21 germany) or (7 germany)) %2f history %2023 ((20th century) OR (18th century))%22".
• Adding a wildcard symbol may retrieve word variants: %22christian ((union conversations) or (curious conversations)) %((21 germany) or (7 germany)) %2f history %2023 ((20th century) OR (18th century))%22*.