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
2 germany » 7 germany, 8 germany, 5 germany
2021 20th » 2020 20th, 2021 10th, 2023 20th
2021 24th » 2021 4th, 2021 6th, 2021 7th
2 german » 3 german, 5 german

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) OR (2 german)) %ref history %((2021 20th) OR (2021 24th)) century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%christian spoken conversations %((2 germany) or (2 german)) %ref history %((2021 20th) OR (2021 24th)) century%22".
• Adding a wildcard symbol may retrieve word variants: %christian spoken conversations %((2 germany) or (2 german)) %ref history %((2021 20th) OR (2021 24th)) century%22*.