Perhaps you should try some spelling variations:
china chang » china changqi, china china, china can
china zhang » cheng zhang, china han, china hand
chin chang » chain change, colin chang, chin chin
wang yong » wang yang, wang hyoung, wang yan
wang yao » wang yan, yang yao, gang yao
yao yang » yang yang
yong shu » cong shu, tong shui, wong shiu

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yao yang anda ((((china chang) OR (china zhang))) or (chin chang)) wang yong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yao yang anda ((((china chang) OR (china zhang))) OR (chin chang)) wang yong shu ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yao yang anda ((((china chang) OR (china zhang))) or (chin chang)) wang yong shu ;".
• Adding a wildcard symbol may retrieve word variants: wang yao yang anda ((((china chang) OR (china zhang))) or (chin chang)) wang yong shu ;*.