Perhaps you should try some spelling variations:
union conversations » win conversations, design conversations, driven conversations
design conclusions » design conclusion
20th century » 18th century
tnf history » imf history, ref history, motif history
etf history » reef history, imf history, ref history
21 germany » 2 germany, 20 germany, 7 germany
11 germany » 11 german, 1918 germany, 7 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 (design conclusions)) %((21 germany) OR (11 germany)) %((tnf history) OR (etf history)) %20 20th century%22.
• Adding a wildcard symbol may retrieve word variants: %22christian ((union conversations) or (design conclusions)) %((21 germany) or (11 germany)) %((tnf history) or (etf history)) %20 20th century%22*.