Perhaps you should try some spelling variations:
wang liang » wang yang
yang guang » yang yang
yang liang » yan liang, yang yang, peng liang
sang minh » kang minah, anh minh, song min
yan guan » gan guan, yan yuan, yihan guan
lee sang » lee ann
cong » congo, long, hong

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang liang ((((yang guang) OR (yang liang))) or (yan guan)) lee sang minh cong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang liang ((((yang guang) OR (yang liang))) OR (yan guan)) lee sang minh cong shu ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang liang ((((yang guang) OR (yang liang))) or (yan guan)) lee sang minh cong shu ;".
• Adding a wildcard symbol may retrieve word variants: wang liang ((((yang guang) OR (yang liang))) or (yan guan)) lee sang minh cong shu ;*.