Perhaps you should try some spelling variations:
22christian union » christian union, christian unity
christian upon » christians upon, christian union, christianity upon
imf history » brief history
2f germany » 2 germany, 20 germany, 21 germany
11 germany » 11 german, 1918 germany, 7 germany
2f 20th » 2.2 20th
20 20th » 90 20th, 2019 20th, 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: %((22christian union) OR (christian upon)) conversations %((2f germany) OR (11 germany)) %imf history %((2f 20th) OR (20 20th)) century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((22christian union) or (christian upon)) conversations %((2f germany) or (11 germany)) %imf history %((2f 20th) OR (20 20th)) century%22".
• Adding a wildcard symbol may retrieve word variants: %((22christian union) or (christian upon)) conversations %((2f germany) or (11 germany)) %imf history %((2f 20th) OR (20 20th)) century%22*.