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