Perhaps you should try some spelling variations:
when conversations » open conversations, agent conversations, chain conversations
win conversations » ai conversations, ip conversations, iv conversations
brief hystory » brief history, brief herstory, brief story
bief history » brief history, reef history, ref history
20th century » 18th century
etf history » reef history, ref history, tnf history
imf history » brief history
2 germany » 7 germany, 2 german, 8 germany
20 20th » 90 20th, 2019 20th, 2020 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 ((win conversations) OR (when conversations)) %2 germany %((((etf history) OR (imf history))) OR (((bief history) OR (brief hystory)))) %20 20th century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22christian ((win conversations) OR (when conversations)) %2 germany %((((etf history) or (imf history))) or (((bief history) or (brief hystory)))) %20 20th century%22".
• Adding a wildcard symbol may retrieve word variants: %22christian ((win conversations) OR (when conversations)) %2 germany %((((etf history) or (imf history))) or (((bief history) or (brief hystory)))) %20 20th century%22*.