Perhaps you should try some spelling variations:
yang yang » wang yan
wang yang » wang yan, wang liang, wang yanling
tang minh » tang min, kang minah, tuan minh
sang minh » kang minah, anh minh, song min
long shu » cong shu, tong shui, long du
yan run » can run, bank run, yan guan
yan kun » yan guan, yan yuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((yang yang) or (wang yang)) ((yan run) OR (yan kun)) gain ((tang minh) or (sang minh)) long shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yang yang) OR (wang yang)) ((yan run) OR (yan kun)) gain ((tang minh) OR (sang minh)) long shu ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yang yang) or (wang yang)) ((yan run) OR (yan kun)) gain ((tang minh) or (sang minh)) long shu ;*".