Perhaps you should try some spelling variations:
union conversations » win conversations, design conversations, driven conversations
22christian union » christian union, christian unity, christian upon
2017 germany » 20 germany, 17 germany, 2006 germany
reef history » brief history, reeves history, reef fishery
2.1 germany » 9.13 germany, 9.14 germany, 9.15 germany
ref history » brief history, bief history, imf history
21 germany » 11 germany, 2 germany, 20 germany

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 %((21 germany) OR (((2.1 germany) OR (2017 germany)))) %((ref history) OR (reef history)) %2023 ((20th century) OR (18th century))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22christian union conversations %((21 germany) or (((2.1 germany) OR (2017 germany)))) %((ref history) or (reef history)) %2023 ((20th century) or (18th century))%22".
• Adding a wildcard symbol may retrieve word variants: %22christian union conversations %((21 germany) or (((2.1 germany) OR (2017 germany)))) %((ref history) or (reef history)) %2023 ((20th century) or (18th century))%22*.