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

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 china kwan ((yang jin) or (yang jui)) ((wang he) or (wang wei)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lung can han china kwan ((yang jin) OR (yang jui)) ((wang he) OR (wang wei)) ;*.