Perhaps you should try some spelling variations:
spoken conversations » spoken conversation, open conversations, oboen conversations
christian spoken » christian scorn, christian shore, christian steven
ref history » reef history, brief history, bief history
imf history » brief history
21 germany » 2 germany, 20 germany, 1 germany
11 germany » 11 german, 1918 germany, 7 germany
2020 20th » 2020 16th, 2020 2021, 2020 5th
2.2 20th » 2023 20th, 2021 20th, 2022 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 %((21 germany) OR (11 germany)) %((ref history) OR (imf history)) %((2.2 20th) OR (2020 20th)) century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%christian spoken conversations %((21 germany) or (11 germany)) %((ref history) or (imf history)) %((2.2 20th) OR (2020 20th)) century%22".
• Adding a wildcard symbol may retrieve word variants: %christian spoken conversations %((21 germany) or (11 germany)) %((ref history) or (imf history)) %((2.2 20th) OR (2020 20th)) century%22*.