Perhaps you should try some spelling variations:
union conversations » curious conversations, design conversations, driven conversations
win conversations » when conversations, wine conversation, wins conversation
20th century » 18th century
bief history » brief hystory, ref history, brief herstory
reef history » reeves history, reef fishery
20 germany » 7 germany, 8 germany, 5 germany
2f germany » 21 germany, 25 germany, 26 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) OR (win conversations)) %((((2f germany) OR (20 germany))) OR (2 germany)) %((((reef history) OR (imf history))) OR (((bief history) OR (brief history)))) %2f 20th century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22christian ((union conversations) OR (win conversations)) %((((2f germany) or (20 germany))) or (2 germany)) %((((reef history) or (imf history))) or (((bief history) or (brief history)))) %2f 20th century%22".
• Adding a wildcard symbol may retrieve word variants: %22christian ((union conversations) OR (win conversations)) %((((2f germany) or (20 germany))) or (2 germany)) %((((reef history) or (imf history))) or (((bief history) or (brief history)))) %2f 20th century%22*.