Perhaps you should try some spelling variations:
union conversations » win conversations, design conversations, driven conversations
design conclusions » design conclusion
20th century » 18th century
2f history » imf history, etf history, ref history
5 germany » 5 german, 8 germany, 6 germany
2 germany » 2 german, 8 germany, 6 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: %christian ((union conversations) OR (design conclusions)) %((((5 germany) OR (7 germany))) OR (2 germany)) %2f history %2f 20th century%22.
• Adding a wildcard symbol may retrieve word variants: %christian ((union conversations) or (design conclusions)) %((((5 germany) or (7 germany))) or (2 germany)) %2f history %2f 20th century%22*.