Perhaps you should try some spelling variations:
zhang ming » zhang xin
wang yang » wang yan, wang liang, wang yanling
sang minh » kang minah, anh minh, song min
yang yan » yang yang, wang yan, yang fan
gong hui » tong hui, tong shui, wang hui
yan ii » yan zi
ii lee » ii les, ii le, ii level

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yang yan ii lee ((sang minh) or (zhang ming)) gong hui ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang yan ii lee ((sang minh) OR (zhang ming)) gong hui ;.
• Adding a wildcard symbol may retrieve word variants: wang yang yan ii lee ((sang minh) or (zhang ming)) gong hui ;*.