Perhaps you should try some spelling variations:
design conversations » design considerations, design construction, design conclusions
win conversations » when conversations, ai conversations, ip conversations
2.1 germany » 2017 germany, 9.13 germany, 9.14 germany
ref history » reef history, brief history, bief history
21 germany » 11 germany, 2 germany, 20 germany
90 20th » 94 20th, 1990 20th
20 20th » 2019 20th, 2020 20th, 2023 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 ((win conversations) OR (design conversations)) %((21 germany) OR (2.1 germany)) %ref history %((90 20th) OR (20 20th)) century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22christian ((win conversations) or (design conversations)) %((21 germany) or (2.1 germany)) %ref history %((90 20th) OR (20 20th)) century%22".
• Adding a wildcard symbol may retrieve word variants: %22christian ((win conversations) or (design conversations)) %((21 germany) or (2.1 germany)) %ref history %((90 20th) OR (20 20th)) century%22*.