Perhaps you should try some spelling variations:
design conversations » design considerations, design construction, design conclusions
union conversations » win conversations, driven conversations, invent conversations
2017 germany » 17 germany, 2006 germany, 1917 germany
20th century » 18th century
21 germany » 11 germany, 2 germany, 7 germany
20 germany » 2 germany, 7 germany, 8 germany
2f history » imf history, etf history, ref history
90 20th » 20 20th, 94 20th, 1990 20th

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 conversations)) %((21 germany) OR (((2017 germany) OR (20 germany)))) %2f history %90 20th century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22christian ((union conversations) or (design conversations)) %((21 germany) or (((2017 germany) OR (20 germany)))) %2f history %90 20th century%22".
• Adding a wildcard symbol may retrieve word variants: %22christian ((union conversations) or (design conversations)) %((21 germany) or (((2017 germany) OR (20 germany)))) %2f history %90 20th century%22*.