Perhaps you should try some spelling variations:
chin chang » china chang, chain change, china zhang
yang muxi » yang jui, yang hui, yang mu
chin chin » china china
soon heng » soon beng, soon seng
soon ang » hoong ang, soon beng, soon seng
wang du » wang d, wang di, yang du
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: wang du ((yang muxi) OR (yang xi)) ((chin chang) OR (chin chin)) ((soon heng) OR (soon ang)) seo ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang du ((yang muxi) OR (yang xi)) ((chin chang) or (chin chin)) ((soon heng) or (soon ang)) seo ;~".
• Adding a wildcard symbol may retrieve word variants: wang du ((yang muxi) OR (yang xi)) ((chin chang) or (chin chin)) ((soon heng) or (soon ang)) seo ;*.