Perhaps you should try some spelling variations:
china chen » china shen, china china, china chang
doing sin » dong sin, doing un, doing von
yu liang » you liang, yan liang, yu hsiang
wong sau » wong sam, wong siu, wong shiu
wang wei » zhang wei, wang zhi
sin can » sin cain, tin can, simon can
chen yu » chen y, chen yulu, cheng lu

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 yu liang ((((wong sau) or (song shin))) or (wang wei)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doing sin can china chen yu liang ((((wong sau) OR (song shin))) OR (wang wei)) ;.
• Adding a wildcard symbol may retrieve word variants: doing sin can china chen yu liang ((((wong sau) or (song shin))) or (wang wei)) ;*.