Perhaps you should try some spelling variations:
zhang ming » zhang xin
chen zhang » cheng zhang, zhen zhang, chen zheng
ming tong » ming kong, ming hung, ming qing
wing yan » wang yan, wing ian, wing tan
yang hui » yang jui, wang hui, yang muxi
wang wei » zhang wei, wang zhi
tong shu » tong shui, cong shu, wong shiu
yan jui » yang jui, yang jun

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: wing yan ((yan jui) OR (((yang hui) OR (wang wei)))) chen zhang ming tong shu ;~.
• Adding a wildcard symbol may retrieve word variants: wing yan ((yan jui) or (((yang hui) or (wang wei)))) chen zhang ming tong shu ;*.