Perhaps you should try some spelling variations:
cheng ming » cheng bing, cheng ling, zhang ming
chen ping » chen rong, chen yang, chen wang
sang yue » wang yue, yang yue, sang hyup
jin wong » jin song, john wong, jin ying
wong sau » wong sam, wong siu, wong shiu
sang yu » sang hyup, wang yue, mang yul
wang » wing, 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 or wan) yan ((sang yu) or (sang yue)) ((cheng ming) OR (chen ping)) jin wong sau ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (wang OR wan) yan ((sang yu) OR (sang yue)) ((cheng ming) OR (chen ping)) jin wong sau ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(wang or wan) yan ((sang yu) or (sang yue)) ((cheng ming) OR (chen ping)) jin wong sau ;".
• Adding a wildcard symbol may retrieve word variants: (wang or wan) yan ((sang yu) or (sang yue)) ((cheng ming) OR (chen ping)) jin wong sau ;*.