Perhaps you should try some spelling variations:
curious conversations » curious conversion, serious conversation, courageous conversations
reef history » reeves history, reef fishery, imf history
ref history » bief history, imf history, etf history
2 germany » 12 germany, 7 germany, 2 german

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