Perhaps you should try some spelling variations:
upon conversations » union conversations, open conversations, spoken conversations
christianity upon » christianity among, christianity from, christians upon
reef history » brief history, reeves history, reef fishery
2023 18th » 2023 8th, 2023 11th, 2023 10th
2 german » 3 german, 5 german

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "%christianity upon conversations %((2 german) OR (a german)) %reef history %2023 18th century%22".
• Adding a wildcard symbol may retrieve word variants: %christianity upon conversations %((2 german) OR (a german)) %reef history %2023 18th century%22*.