Perhaps you should try some spelling variations:
dong sein » dong sin, dong bin, ong sean
dong wei » wang wei, dong di, dong hoi
ping hui » xing hui, tong hui, feng hui
wang hui » wang hua, wang zhi, wang wei
yang yue » wang yue, yang yun, yang jui
wann yu » wang yue
yu chen » yu cheng, yi chen, yulu 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 sein) or (dong wei)) wann yu chen ((ping hui) OR (wang hui)) yang yue ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong sein) OR (dong wei)) wann yu chen ((ping hui) OR (wang hui)) yang yue ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((dong sein) or (dong wei)) wann yu chen ((ping hui) OR (wang hui)) yang yue ;*".