Perhaps you should try some spelling variations:
china chang » china zhang, china changqi, china china
chin chang » chain change, china zhang, colin chang
wai chung » lai chung
wang dan » wang yan, wang ban, wang yidan
dan yang » daun yang, tan yang, wang yang
yang chi » yang chik, wang chi, yang di
kai hong » bai chong, hai phong, wai hoong

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: wang dan yang chi ((chin chang) OR (china chang)) ((wai chung) OR (kai hong)) shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang dan yang chi ((chin chang) OR (china chang)) ((wai chung) or (kai hong)) shu ;~".
• Adding a wildcard symbol may retrieve word variants: wang dan yang chi ((chin chang) OR (china chang)) ((wai chung) or (kai hong)) shu ;*.