Perhaps you should try some spelling variations:
curious conversations » curious conversion, serious conversation, conscious conversations
2.1 germany » 21 germany, 2017 germany, 9.13 germany
etf history » reef history, imf history, ref 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 ((curious conversations) OR (courageous conversations)) %((2f germany) OR (2.1 germany)) %etf history %2f 18th century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22christian ((curious conversations) OR (courageous conversations)) %((2f germany) or (2.1 germany)) %etf history %2f 18th century%22".
• Adding a wildcard symbol may retrieve word variants: %22christian ((curious conversations) OR (courageous conversations)) %((2f germany) or (2.1 germany)) %etf history %2f 18th century%22*.