Perhaps you should try some spelling variations:
wang liang » wang yang
sang minh » kang minah, anh minh, song min
wong shiu » wong siu, cong shu, song shin
yang lin » yang jin, wang lin, yang liang
yang jie » yang jin, yang di, yang jui
yang li » yang di, yang xi, yang yi
xu sang » du sang, xu gang

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 lin) OR (yang li))) or (yang jie)) xu sang minh ((dong sin) or (wong shiu)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang liang ((((yang lin) OR (yang li))) OR (yang jie)) xu sang minh ((dong sin) OR (wong shiu)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang liang ((((yang lin) OR (yang li))) or (yang jie)) xu sang minh ((dong sin) or (wong shiu)) ;*".