Perhaps you should try some spelling variations:
union conversations » win conversations, design conversations, driven conversations
design conclusions » design conclusion
9.13 germany » 9.15 germany, 9.16 germany, 113 germany
9.14 germany » 9.15 germany, 9.16 germany, 8.4 germany
20th century » 18th century
2.1 germany » 21 germany, 2017 germany, 9.15 germany
2f history » imf history, etf history, ref history
2 germany » 7 germany, 2 german, 8 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 ((union conversations) OR (design conclusions)) %((2 germany) OR (((2.1 germany) OR (((9.13 germany) OR (9.14 germany)))))) %2f history %2f 20th century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22christian ((union conversations) or (design conclusions)) %((2 germany) or (((2.1 germany) or (((9.13 germany) OR (9.14 germany)))))) %2f history %2f 20th century%22".
• Adding a wildcard symbol may retrieve word variants: %22christian ((union conversations) or (design conclusions)) %((2 germany) or (((2.1 germany) or (((9.13 germany) OR (9.14 germany)))))) %2f history %2f 20th century%22*.