Perhaps you should try some spelling variations:
upon conversations » union conversations, open conversations, spoken conversations
christians upon » christians among, christians from, christians being
ref history » reef history, brief history, bief history
8th century » 18th century, 5th century, 6th century
2 germany » 12 germany, 7 germany, 2 german
2023 8th » 2023 5th, 2023 7th

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