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 » kai hong
bai chong » lai chung, wai chung, kai hong
yao yang » yang yang
yang did » yang di, yang mind, yang xi
wan yao » wang yan, yang yao, gang yao

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

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