Perhaps you should try some spelling variations:
union conversations » win conversations, design conversations, driven conversations
design conclusions » design conclusion
20th century » 18th century
11 germany » 11 german, 1918 germany, 7 germany
2f history » imf history, etf history, ref history
2019 20th » 2019 4th, 2019 6th, 2019 5th

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)) %11 germany %2f history %2019 20th century%22.
• Adding a wildcard symbol may retrieve word variants: %22christian ((union conversations) or (design conclusions)) %11 germany %2f history %2019 20th century%22*.