Perhaps you should try some spelling variations:
christianity from » christianity great, christianity _, christianity a
1918 germany » 8 germany
bief history » brief hystory, imf history, reef history
20th century » 18th century
ref history » reef history, imf history, etf history
21 germany » 2 germany, 20 germany, 7 germany
11 germany » 11 german, 7 germany, 8 germany
2020 20th » 2020 16th, 2020 2021, 2020 5th

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: %((christianity from) OR (christianity early)) conversations %((21 germany) OR (((11 germany) OR (1918 germany)))) %((ref history) OR (((bief history) OR (brief history)))) %2020 20th century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((christianity from) OR (christianity early)) conversations %((21 germany) or (((11 germany) or (1918 germany)))) %((ref history) or (((bief history) or (brief history)))) %2020 20th century%22".
• Adding a wildcard symbol may retrieve word variants: %((christianity from) OR (christianity early)) conversations %((21 germany) or (((11 germany) or (1918 germany)))) %((ref history) or (((bief history) or (brief history)))) %2020 20th century%22*.