Perhaps you should try some spelling variations:
union conversations » win conversations, curious conversations, design conversations
22christian union » christian union, christian unity, christian upon
2.1 germany » 21 germany, 2017 germany, 9.13 germany
imf history » brief history
20 germany » 2 germany, 7 germany, 8 germany
2f history » etf history, ref history, tnf history

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