Perhaps you should try some spelling variations:
curious conversations » curious conversion, courageous conversations, conscious conversations
design conversations » design considerations, design construction, design conclusions
serious conversation » serious conideration, versus conversation, ingenious conversation
union conversations » win conversations, driven conversations, invent conversations
20th century » 18th century
reef history » brief history, reeves history, reef fishery
ref history » brief history, bief history, etf history
imf history » brief history
21 germany » 11 germany, 2 germany, 20 germany
2f germany » 2 germany, 20 germany, 25 germany
2f 20th » 20 20th, 2.2 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 ((((union conversations) OR (design conversations))) OR (((curious conversations) OR (serious conversation)))) %((2f germany) OR (21 germany)) %((imf history) OR (((ref history) OR (reef history)))) %2f 20th century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22christian ((((union conversations) OR (design conversations))) or (((curious conversations) or (serious conversation)))) %((2f germany) or (21 germany)) %((imf history) or (((ref history) or (reef history)))) %2f 20th century%22".
• Adding a wildcard symbol may retrieve word variants: %22christian ((((union conversations) OR (design conversations))) or (((curious conversations) or (serious conversation)))) %((2f germany) or (21 germany)) %((imf history) or (((ref history) or (reef history)))) %2f 20th century%22*.