Perhaps you should try some spelling variations:
china chang » china zhang, china changqi, china china
chin chang » chain change, china zhang, colin chang
hai phong » bai chong, kai hong
wai hoong » kai hong
yan yang » yang yang, yao yang, dan yang
yang chi » yang chik, wang chi, yang di
wang » wing, wan, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yan yang chi ((china chang) OR (chin chang)) ((hai phong) or (wai hoong)) shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yan yang chi ((china chang) OR (chin chang)) ((hai phong) OR (wai hoong)) shu ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan yang chi ((china chang) OR (chin chang)) ((hai phong) or (wai hoong)) shu ;*".