Perhaps you should try some spelling variations:
spoken conversations » spoken conversation, open conversations, oboen conversations
christian spoken » christian scorn, christian shore, christian steven
bief history » brief history, brief hystory, imf history
20th century » 18th century
etf history » reef history, imf history, tnf history
ref history » reef history, brief history, imf history
brief story » brief history, brief study
2 germany » 7 germany, 2 german, 8 germany
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: %christian spoken conversations %2 germany %((((etf history) OR (ref history))) OR (((bief history) OR (brief story)))) %20 20th century%22.
• Adding a wildcard symbol may retrieve word variants: %christian spoken conversations %2 germany %((((etf history) or (ref history))) or (((bief history) or (brief story)))) %20 20th century%22*.