Perhaps you should try some spelling variations:
curious conversations » curious conversion, courageous conversations, conscious conversations
serious conversation » serious conideration, versus conversation, ingenious conversation
union conversations » win conversations, design conversations, driven conversations
reef history » brief history, reeves history, reef fishery
ref history » brief history, bief history, etf history
tnf history » etf history, motif history, stone history
imf history » brief history
2f germany » 2 germany, 20 germany, 21 germany

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) OR (serious conversation)))) %2f germany %((((tnf history) OR (((reef history) OR (imf history))))) OR (ref history)) %2f ((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) OR (serious conversation)))) %2f germany %((((tnf history) or (((reef history) or (imf history))))) or (ref history)) %2f ((20th century) or (18th century))%22".
• Adding a wildcard symbol may retrieve word variants: %22christian ((union conversations) or (((curious conversations) OR (serious conversation)))) %2f germany %((((tnf history) or (((reef history) or (imf history))))) or (ref history)) %2f ((20th century) or (18th century))%22*.