Perhaps you should try some spelling variations:
design conversations » design construction, design conclusions, design competitions
design consideration » design considering, design construction, design collaboration
20th century » 18th century
ref history » reef history, brief history, bief history
21 germany » 2 germany, 20 germany, 7 germany
11 germany » 11 german, 1918 germany, 7 germany
2020 20th » 2020 16th, 2020 2021, 2020 5th

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 ((((design conversations) OR (design consideration))) OR (design considerations)) %((21 germany) OR (11 germany)) %ref history %2020 20th century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22christian ((((design conversations) OR (design consideration))) or (design considerations)) %((21 germany) or (11 germany)) %ref history %2020 20th century%22".
• Adding a wildcard symbol may retrieve word variants: %22christian ((((design conversations) OR (design consideration))) or (design considerations)) %((21 germany) or (11 germany)) %ref history %2020 20th century%22*.