Perhaps you should try some spelling variations:
wang yidan » wang yan
gang minh » kang minah, anh minh, gong min
sang minh » kang minah, anh minh, song min
wang dan » wang yan, wang ban, wang yang
long shu » cong shu, tong shui, long du
yang li » yang lin, yang di, yang xi
li i » li li, li yi, liv i

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 i ((gang minh) or (sang minh)) long shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang dan) OR (wang yidan)) yang li i ((gang minh) OR (sang minh)) long shu ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang dan) OR (wang yidan)) yang li i ((gang minh) or (sang minh)) long shu ;*".