Perhaps you should try some spelling variations:
wang yong » wang yang, wang hyoung, wang yan
sang minh » kang minah, anh minh, song ming
yong yan » yang yang, dong yang, ying yang
song min » song ming, gong min, jong min
le sang » lee sang, le dang
yan zi » yan zhi, yuan zi, ban zi
zi le » i le, ii le

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yong yan zi le sang minh (((cong or long) shu) or (song min)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yong yan zi le sang minh (((cong OR long) shu) OR (song min)) ;.
• Adding a wildcard symbol may retrieve word variants: wang yong yan zi le sang minh (((cong or long) shu) or (song min)) ;*.