Perhaps you should try some spelling variations:
content conversations » content conservation, center conversations, content conversion
roman conversations » crucial conversations, design conversations
open conversations » agent conversations, based conversations, _ conversations
bief history » brief history, brief hystory, imf history
20th century » 18th century
ref history » reef history, brief history, imf history
21 germany » 11 germany, 20 germany, 1 germany
2 germany » 7 germany, 2 german, 8 germany
2.2 20th » 2020 20th, 2023 20th, 2021 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: %christian ((((open conversations) OR (content conversations))) OR (roman conversations)) %((21 germany) OR (2 germany)) %((ref history) OR (bief history)) %2.2 20th century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%christian ((((open conversations) or (content conversations))) or (roman conversations)) %((21 germany) OR (2 germany)) %((ref history) or (bief history)) %2.2 20th century%22".
• Adding a wildcard symbol may retrieve word variants: %christian ((((open conversations) or (content conversations))) or (roman conversations)) %((21 germany) OR (2 germany)) %((ref history) or (bief history)) %2.2 20th century%22*.