Perhaps you should try some spelling variations:
union conversations » win conversations, design conversations, driven conversations
upon conversations » open conversations, spoken conversations, human conversations
reeves history » waves history, lives history, archives history
20th century » 18th century
reef history » brief history, reef fishery, imf history
ref history » brief history, bief history, imf history
11 germany » 11 german, 1918 germany, 7 germany
21 germany » 2 germany, 20 germany, 7 germany
2023 20th » 2023 26th, 2023 10th, 2020 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 ((upon conversations) OR (union conversations)) %((21 germany) OR (11 germany)) %((ref history) OR (((reef history) OR (reeves history)))) %2023 20th century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%christian ((upon conversations) OR (union conversations)) %((21 germany) or (11 germany)) %((ref history) or (((reef history) or (reeves history)))) %2023 20th century%22".
• Adding a wildcard symbol may retrieve word variants: %christian ((upon conversations) OR (union conversations)) %((21 germany) or (11 germany)) %((ref history) or (((reef history) or (reeves history)))) %2023 20th century%22*.