Perhaps you should try some spelling variations:
curious conversations » curious conversion, courageous conversations, conscious conversations
serious conversation » serious conideration, versus conversation, ingenious conversation
reef history » brief history, reeves history, reef fishery
16th century » 18th century, 19th century, 17th century
2023 16th » 2020 16th, 2023 6th, 2023 11th

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: "%22christian ((serious conversation) OR (curious conversations)) %7 germany %reef history %2023 16th century%22".
• Adding a wildcard symbol may retrieve word variants: %22christian ((serious conversation) OR (curious conversations)) %7 germany %reef history %2023 16th century%22*.