Perhaps you should try some spelling variations:
cheng ping » chen ping, cheng bing, cheng ling
dong sein » dong sin, dong bin, ong sean
dong wei » wang wei, dong di, dong hoi
ping hui » xing hui, wang hui, tong hui
hui yang » hui ying, du yang, h yang
yang yue » wang yue, yang yun, yang jui
wann yu » wang yue

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)) ((dann yu) OR (wann yu)) cheng ping hui yang yue ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong sein) OR (dong wei)) ((dann yu) OR (wann yu)) cheng ping hui yang yue ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((dong sein) or (dong wei)) ((dann yu) OR (wann yu)) cheng ping hui yang yue ;*".