Perhaps you should try some spelling variations:
union conversations » win conversations, design conversations, driven conversations
20th century » 18th century
ref history » reef history, brief history, bief history
21 germany » 2 germany, 20 germany, 7 germany
12 germany » 12 german, 2 germany, 7 germany
11 germany » 11 german, 1918 germany, 7 germany
14 germany » 4 germany, 1945 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 union conversations %((21 germany) OR (((((12 germany) OR (11 germany))) OR (14 germany)))) %ref history %2023 20th century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%christian union conversations %((21 germany) or (((((12 germany) OR (11 germany))) or (14 germany)))) %ref history %2023 20th century%22".
• Adding a wildcard symbol may retrieve word variants: %christian union conversations %((21 germany) or (((((12 germany) OR (11 germany))) or (14 germany)))) %ref history %2023 20th century%22*.