Perhaps you should try some spelling variations:
china chang » china zhang, china changqi, china china
yiqian wang » yijiang wang, liqin wang, qian wang
chin chang » chain change, china zhang, colin chang
wang yang » wang yan, wang liang, wang yanling
lai chung » wai chung
hai phong » bai chong, kai hong
yang xi » yang di, yang yi, yang jui

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: yiqian wang yang xi ((chin chang) OR (china chang)) ((lai chung) OR (hai phong)) shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "yiqian wang yang xi ((chin chang) OR (china chang)) ((lai chung) or (hai phong)) shu ;~".
• Adding a wildcard symbol may retrieve word variants: yiqian wang yang xi ((chin chang) OR (china chang)) ((lai chung) or (hai phong)) shu ;*.