Perhaps you should try some spelling variations:
22christian union » christian unity, christian upon
imf history » brief history
21 germany » 11 germany, 2 germany, 20 germany
11 german » 1 german
2.2 18th » 2021 18th, 2022 18th, 2023 18th

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 union)) conversations %((21 germany) OR (11 german)) %imf history %2.2 18th century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((22christian union) OR (christian union)) conversations %((21 germany) or (11 german)) %imf history %2.2 18th century%22".
• Adding a wildcard symbol may retrieve word variants: %((22christian union) OR (christian union)) conversations %((21 germany) or (11 german)) %imf history %2.2 18th century%22*.