Perhaps you should try some spelling variations:
curious conversations » curious conversion, serious conversation, courageous conversations
design conversations » design considerations, design construction, design conclusions
union conversations » win conversations, driven conversations, invent conversations
20th century » 18th century
2.1 germany » 2017 germany, 9.13 germany, 9.14 germany
21 germany » 11 germany, 2 germany, 20 germany
2f history » 2.1 history, imf history, etf 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 (curious conversations))) OR (design conversations)) %((21 germany) OR (2.1 germany)) %2f history %90 20th century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22christian ((((union conversations) OR (curious conversations))) or (design conversations)) %((21 germany) or (2.1 germany)) %2f history %90 20th century%22".
• Adding a wildcard symbol may retrieve word variants: %22christian ((((union conversations) OR (curious conversations))) or (design conversations)) %((21 germany) or (2.1 germany)) %2f history %90 20th century%22*.