Perhaps you should try some spelling variations:
ancient king » ancient kingdom, ancient china
ancient city » ancient china, ancient sites
tuan china » wuhan china, can china, taiwan china
dong dinh » dong sin, dong di, dong bin
dinh tuan » binh thuan, dinh tung, anh tuan
john song » john wong, john bonn, john ngosong
shin » skin, sein, thin

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

• Performing a fuzzy search may retrieve terms with similar spellings: dong dinh tuan china ((ancient king) or (ancient city)) john song shin ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong dinh tuan china ((ancient king) OR (ancient city)) john song shin ;.
• Adding a wildcard symbol may retrieve word variants: dong dinh tuan china ((ancient king) or (ancient city)) john song shin ;*.