Perhaps you should try some spelling variations:
china kwan » ching kwan, china kai, china wang
can have » may have
yang jin » yang jie, yang jun, ying jin
yang jui » yang judy, yang di, yang xi
wang hui » wang hua, wang zhi, wang he
wang wei » zhang wei, wang zhi
can han » man han, can earn, can bank

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

• Performing a fuzzy search may retrieve terms with similar spellings: lung ((can han) OR (can have)) china kwan ((yang jin) or (yang jui)) ((wang hui) or (wang wei)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lung ((can han) OR (can have)) china kwan ((yang jin) OR (yang jui)) ((wang hui) OR (wang wei)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lung ((can han) OR (can have)) china kwan ((yang jin) or (yang jui)) ((wang hui) or (wang wei)) ;*".