Perhaps you should try some spelling variations:
union conversations » win conversations, design conversations, driven conversations
2017 germany » 17 germany, 2006 germany, 1917 germany
2.1 germany » 9.13 germany, 9.14 germany, 9.15 germany
21 germany » 11 germany, 7 germany, 8 germany
20 germany » 7 germany, 8 germany, 5 germany
2f history » etf history, ref history, tnf history
2 germany » 7 germany, 2 german, 8 germany

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: %christian union conversations %((((21 germany) OR (((20 germany) OR (2 germany))))) OR (((2.1 germany) OR (2017 germany)))) %((2f history) OR (((imf history) OR (brief history)))) %2f 18th century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%christian union conversations %((((21 germany) or (((20 germany) or (2 germany))))) or (((2.1 germany) OR (2017 germany)))) %((2f history) or (((imf history) or (brief history)))) %2f 18th century%22".
• Adding a wildcard symbol may retrieve word variants: %christian union conversations %((((21 germany) or (((20 germany) or (2 germany))))) or (((2.1 germany) OR (2017 germany)))) %((2f history) or (((imf history) or (brief history)))) %2f 18th century%22*.