Perhaps you should try some spelling variations:
union conversations » win conversations, design conversations, driven conversations
22christian union » christian union, christian unity, christian upon
20th century » 18th century
bief history » brief hystory, reef history, brief herstory
ref history » reef history, tnf history, reform history
etf history » reef history, tnf history, beruf history
20 germany » 7 germany, 8 germany, 5 germany
25 germany » 5 germany, 21 germany, 27 germany
26 germany » 6 germany, 21 germany, 27 germany
2 germany » 7 germany, 2 german, 8 germany
2f 20th » 20 20th, 2.2 20th

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 %((((((26 germany) OR (25 germany))) OR (20 germany))) OR (2 germany)) %((((etf history) OR (imf history))) OR (((((bief history) OR (ref history))) OR (brief history)))) %2f 20th century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22christian union conversations %((((((26 germany) or (25 germany))) or (20 germany))) or (2 germany)) %((((etf history) or (imf history))) or (((((bief history) OR (ref history))) or (brief history)))) %2f 20th century%22".
• Adding a wildcard symbol may retrieve word variants: %22christian union conversations %((((((26 germany) or (25 germany))) or (20 germany))) or (2 germany)) %((((etf history) or (imf history))) or (((((bief history) OR (ref history))) or (brief history)))) %2f 20th century%22*.