Perhaps you should try some spelling variations:
china zhang » china chang, cheng zhang, china han
chin chang » china chang, chain change, colin chang
wang xiao » wang qiao, wang xiaoyi, wang xiaozu
xiao wang » xiao yang, xiaobo wang, xiao zhang
wang chi » wang zhi, wang chau, wang chun
hai cong » pham cong, bai chong, hai phong

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang xiao wang chi ((chin chang) or (china zhang)) hai cong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang xiao wang chi ((chin chang) OR (china zhang)) hai cong shu ;*.