Perhaps you should try some spelling variations:
union conversations » design conversations, driven conversations, invent conversations
win conversations » when conversations, ai conversations, wine conversation
20th century » 18th century
ref history » reef history, brief history, bief history
21 germany » 2.1 germany, 2 germany, 20 germany
11 germany » 11 german, 1918 germany, 7 germany
2f history » 2.1 history, imf history, etf history
2021 20th » 2021 24th, 2020 20th, 2021 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)) %((21 germany) OR (11 germany)) %((2f history) OR (ref history)) %2021 20th century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22christian ((union conversations) OR (win conversations)) %((21 germany) or (11 germany)) %((2f history) or (ref history)) %2021 20th century%22".
• Adding a wildcard symbol may retrieve word variants: %22christian ((union conversations) OR (win conversations)) %((21 germany) or (11 germany)) %((2f history) or (ref history)) %2021 20th century%22*.