Perhaps you should try some spelling variations:
curious conversations » curious conversion, serious conversation, courageous conversations
reef history » brief history, reeves history, reef fishery
20th century » 18th century
2.1 germany » 21 germany, 2017 germany, 9.13 germany
ref history » brief history, bief history, imf history
11 germany » 11 german, 1918 germany, 7 germany
2020 20th » 2020 16th, 2020 5th, 2020 2021

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 curious conversations %((11 germany) OR (2.1 germany)) %((ref history) OR (reef history)) %2020 20th century%22.
• Adding a wildcard symbol may retrieve word variants: %22christian curious conversations %((11 germany) or (2.1 germany)) %((ref history) or (reef history)) %2020 20th century%22*.