Perhaps you should try some spelling variations:
curious conversations » curious conversion, serious conversation, courageous conversations
etf history » reef history, ref history, tnf history
imf history » brief history
21 germany » 2.1 germany, 11 germany, 2 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 curious conversations %21 germany %((etf history) OR (imf history)) %2f ((20th century) OR (18th century))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22christian curious conversations %21 germany %((etf history) or (imf history)) %2f ((20th century) OR (18th century))%22".
• Adding a wildcard symbol may retrieve word variants: %22christian curious conversations %21 germany %((etf history) or (imf history)) %2f ((20th century) OR (18th century))%22*.