Perhaps you should try some spelling variations:
from conversations » from conversational, roman conversations, bot conversations
from conversation » from conservation, from compensation, _ conversation
bief history » brief hystory, reef history, brief herstory
20th century » 18th century
ref history » reef history, etf history, tnf history
21 germany » 2 germany, 20 germany, 7 germany
11 germany » 11 german, 1918 germany, 7 germany
2.2 20th » 2020 20th, 2023 20th, 2021 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: %christianity ((from conversations) OR (from conversation)) %((21 germany) OR (11 germany)) %((((ref history) OR (imf history))) OR (((bief history) OR (brief history)))) %2.2 20th century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%christianity ((from conversations) OR (from conversation)) %((21 germany) or (11 germany)) %((((ref history) or (imf history))) or (((bief history) or (brief history)))) %2.2 20th century%22".
• Adding a wildcard symbol may retrieve word variants: %christianity ((from conversations) OR (from conversation)) %((21 germany) or (11 germany)) %((((ref history) or (imf history))) or (((bief history) or (brief history)))) %2.2 20th century%22*.