Perhaps you should try some spelling variations:
christian courageous » christian churches, christian courts, christian course
christian courage » christian course, christian courts, christian churches
20th century » 18th century
imf history » brief history
2f germany » 2 germany, 20 germany, 21 germany
2f history » 2.1 history, etf history, ref history
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: %((christian courageous) OR (christian courage)) conversations %((2f germany) OR (7 germany)) %((2f history) OR (imf history)) %2.2 20th century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((christian courageous) OR (christian courage)) conversations %((2f germany) or (7 germany)) %((2f history) or (imf history)) %2.2 20th century%22".
• Adding a wildcard symbol may retrieve word variants: %((christian courageous) OR (christian courage)) conversations %((2f germany) or (7 germany)) %((2f history) or (imf history)) %2.2 20th century%22*.