Perhaps you should try some spelling variations:
dong sine » dong sin, dong bin, dong ping
dong sign » dong sin, among sign, dong bin
sang minh » kang minah, anh minh, song min
yang jin » yang jun, ying jin, shang jin
yang jie » yang di, yang jui, yang xi
wang hui » wang hua, wang zhi, wang wei
a chen » ta chen, _ chen, n chen

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((dong sine) or (dong sign)) 3 a chen ((((sang minh) or (yang jin))) or (yang jie)) wang hui ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong sine) OR (dong sign)) 3 a chen ((((sang minh) OR (yang jin))) OR (yang jie)) wang hui ;.
• Adding a wildcard symbol may retrieve word variants: ((dong sine) or (dong sign)) 3 a chen ((((sang minh) or (yang jin))) or (yang jie)) wang hui ;*.