Perhaps you should try some spelling variations:
china chang » china zhang, china changqi, china china
chin chang » chain change, china zhang, colin chang
wang qian » wang qiao, wang qin, wang liang
bai chong » lai chung, wai chung, hai phong
wai hoong » kai hong
qian yan » qian jun, qian yi
yan di » yang di, pan di, yan zi

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 qian yan di ((china chang) OR (chin chang)) ((bai chong) OR (wai hoong)) shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang qian yan di ((china chang) OR (chin chang)) ((bai chong) or (wai hoong)) shu ;~".
• Adding a wildcard symbol may retrieve word variants: wang qian yan di ((china chang) OR (chin chang)) ((bai chong) or (wai hoong)) shu ;*.