Perhaps you should try some spelling variations:
wang yidan » wang yan
kang minh » kang minah, sang minh, anh minh
wong shiu » wong siu, cong shu, song shin
wang dan » wang yan, wang ban, wang yang
yang li » yang lin, yang di, yang xi
li kang » li gang, li wang, xi kang
li li » li lin, li l, li lu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang dan) or (wang yidan)) yang li li kang minh ((wong shiu) or (song (shin OR thin))) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang dan) OR (wang yidan)) yang li li kang minh ((wong shiu) OR (song (shin OR thin))) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang dan) or (wang yidan)) yang li li kang minh ((wong shiu) or (song (shin OR thin))) ;*".