Perhaps you should try some spelling variations:
design conversations » design considerations, design conclusions, design consideration
9.14 germany » 9.13 germany, 9.15 germany, 9.16 germany
20th century » 18th century
ref history » reef history, brief history, bief history
21 germany » 11 germany, 2 germany, 20 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 construction)) %((21 germany) OR (9.14 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 construction)) %((21 germany) or (9.14 germany)) %ref history %2020 20th century%22".
• Adding a wildcard symbol may retrieve word variants: %22christian ((design conversations) OR (design construction)) %((21 germany) or (9.14 germany)) %ref history %2020 20th century%22*.