Perhaps you should try some spelling variations:
china chen » china shen, china china, china chang
doing sin » dong sin, doing un, doing von
yan liang » yang liang, wang liang, you liang
wong shiu » wong siu, cong shu, song shin
chen yan » chen yang, chen tan, chen yun
wang hui » wang hua, wang zhi, wang wei
sin can » sin cain, tin can, simon can

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

• Performing a fuzzy search may retrieve terms with similar spellings: doing sin can china chen yan liang ((wong shiu) or (wang hui)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doing sin can china chen yan liang ((wong shiu) OR (wang hui)) ;.
• Adding a wildcard symbol may retrieve word variants: doing sin can china chen yan liang ((wong shiu) or (wang hui)) ;*.