Perhaps you should try some spelling variations:
union conversations » design conversations, driven conversations, invent conversations
win conversations » when conversations, ai conversations, wine conversation
20th century » 18th century
bief history » brief history, brief hystory, imf history
ref history » reef history, brief history, imf history
tnf history » imf history, motif history, stone history
etf history » reef history, imf history, beruf history
11 germany » 11 german, 1918 germany, 7 germany
21 germany » 2.1 germany, 2 germany, 20 germany
2f germany » 2 germany, 20 germany, 25 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 ((union conversations) OR (win conversations)) %((2f germany) OR (((21 germany) OR (11 germany)))) %((((((etf history) OR (tnf history))) OR (ref history))) OR (bief history)) %20 20th century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22christian ((union conversations) OR (win conversations)) %((2f germany) or (((21 germany) or (11 germany)))) %((((((etf history) or (tnf history))) or (ref history))) or (bief history)) %20 20th century%22".
• Adding a wildcard symbol may retrieve word variants: %22christian ((union conversations) OR (win conversations)) %((2f germany) or (((21 germany) or (11 germany)))) %((((((etf history) or (tnf history))) or (ref history))) or (bief history)) %20 20th century%22*.