Perhaps you should try some spelling variations:
wang yong » wang yang, wang hyoung, wang yan
sang minh » kang minah, anh minh, song ming
congo shu » cong shu
yong yan » yang yang, dong yang, ying yang
jui rent » jui meng
song min » song ming, gong min, jong min
yan jui » yang jui, yang jun, yang hui

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 jui rent ((sang minh) or (song min)) congo shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yong yan jui rent ((sang minh) OR (song min)) congo shu ;*.