Perhaps you should try some spelling variations:
cheng yang » chen yang, cheng zhang, chen wang
sang yue » wang yue, yang yue, sang hyup
yang jie » yang jin, yang di, yang jui
jie wong » jie song, kie wong, ji won
wong sau » wong sam, wong siu, wong shiu
sang yu » sang hyup, wang yue, mang yul
wang » wing, wan, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yan ((sang yu) or (sang yue)) cheng yang jie wong sau ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yan ((sang yu) OR (sang yue)) cheng yang jie wong sau ;.
• Adding a wildcard symbol may retrieve word variants: wang yan ((sang yu) or (sang yue)) cheng yang jie wong sau ;*.