Perhaps you should try some spelling variations:
cheng ming » cheng ling, chen ping, zhang ming
cheng bing » cheng ling, chen ping, chen jing
chen yong » chen rong, chen yang, zhen yong
john wong » john song, john bonn
dong bin » dong sin, dong di, dann bin
bin dong » shin dong, bin dann, kim dong
dong hua » wang hua, tong hui, dong hoi
wong yue » wang yue, hong yu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: dong bin dong hua ((chen yong) OR (((cheng bing) OR (cheng ming)))) john wong yue ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "dong bin dong hua ((chen yong) or (((cheng bing) OR (cheng ming)))) john wong yue ;~".
• Adding a wildcard symbol may retrieve word variants: dong bin dong hua ((chen yong) or (((cheng bing) OR (cheng ming)))) john wong yue ;*.