Perhaps you should try some spelling variations:
curious conversations » curious conversion, serious conversation, courageous conversations
union conversations » win conversations, design conversations, driven conversations
reef history » brief history, reeves history, reef fishery
bief history » brief history, brief hystory, ref history
20th century » 18th century
imf history » brief history
2f germany » 2 germany, 20 germany, 21 germany
20 20th » 90 20th, 2019 20th, 2020 20th

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)) %2f germany %((imf history) OR (((reef history) OR (bief history)))) %20 20th century%22*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22christian ((union conversations) OR (curious conversations)) %2f germany %((imf history) or (((reef history) or (bief history)))) %20 20th century%22*".