Perhaps you should try some spelling variations:
union conversations » win conversations, design conversations, driven conversations
upon conversations » open conversations, spoken conversations, human conversations
20th century » 18th century
11 germany » 11 german, 1918 germany, 7 germany
2.2 20th » 2020 20th, 2023 20th, 2021 20th

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: %christians ((upon conversations) OR (union conversations)) %11 germany %((brief history) OR (imf history)) %2.2 20th century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%christians ((upon conversations) OR (union conversations)) %11 germany %((brief history) or (imf history)) %2.2 20th century%22".
• Adding a wildcard symbol may retrieve word variants: %christians ((upon conversations) OR (union conversations)) %11 germany %((brief history) or (imf history)) %2.2 20th century%22*.