Perhaps you should try some spelling variations:
union conversations » win conversations, curious conversations, design conversations
20th century » 18th century
2017 germany » 17 germany, 2006 germany, 1917 germany
2.1 germany » 9.13 germany, 9.14 germany, 9.15 germany
11 germany » 11 german, 1918 germany, 7 germany
20 germany » 2 germany, 7 germany, 8 germany
2f history » imf history, etf history, ref history
21 germany » 2 germany, 25 germany, 26 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 construction)) %((((21 germany) OR (11 germany))) OR (((2.1 germany) OR (((2017 germany) OR (20 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 construction)) %((((21 germany) or (11 germany))) or (((2.1 germany) or (((2017 germany) OR (20 germany)))))) %2f history %2f 20th century%22".
• Adding a wildcard symbol may retrieve word variants: %22christian ((union conversations) or (design construction)) %((((21 germany) or (11 germany))) or (((2.1 germany) or (((2017 germany) OR (20 germany)))))) %2f history %2f 20th century%22*.