Perhaps you should try some spelling variations:
wang liang » wang yang
song minh » sang minh, song min, song ming
yang jui » yang judy, yang di, yang yi
kim song » kim young, kim eung
long shu » cong shu, tong shui
yang xi » yang di, yang yi
long du » long d, long do, long run

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 xi) or (yang jui)) kim song minh ((long shu) or (long du)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang liang ((yang xi) OR (yang jui)) kim song minh ((long shu) OR (long du)) ;*.