Perhaps you should try some spelling variations:
upon conversations » union conversations, open conversations, spoken conversations
christian upon » christians upon, christian union, christianity upon
brief hystory » brief history, brief herstory, brief story
bief history » brief history, imf history, reef history
20th century » 18th century
ref history » reef history, brief history, imf history
11 germany » 11 german, 1918 germany, 8 germany
2f 20th » 20 20th, 2.2 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 %((7 germany) OR (11 germany)) %((ref history) OR (((bief history) OR (brief hystory)))) %2f 20th century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%christian upon conversations %((7 germany) or (11 germany)) %((ref history) or (((bief history) OR (brief hystory)))) %2f 20th century%22".
• Adding a wildcard symbol may retrieve word variants: %christian upon conversations %((7 germany) or (11 germany)) %((ref history) or (((bief history) OR (brief hystory)))) %2f 20th century%22*.