Perhaps you should try some spelling variations:
union conversations » design conversations, driven conversations, invent conversations
design conclusions » design conclusion
win conversations » when conversations, ai conversations, ip conversations
21 germany » 11 germany, 2 germany, 20 germany
2f history » imf history, etf history, ref history
2018 18th » 2018 15th, 2018 14th, 2018 10th

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))) OR (design conclusions)) %21 germany %2f history %2018 18th century%22.
• Adding a wildcard symbol may retrieve word variants: %22christian ((((union conversations) or (win conversations))) or (design conclusions)) %21 germany %2f history %2018 18th century%22*.