Perhaps you should try some spelling variations:
sang minh » kang minah, anh minh, song min
duong van » cong van, duong anh
yang jui » yang judy, yang di, yang yi
ren sang » lee sang, le sang, ren weng
cong seo » hong seo, cong shu, cong sun
yang xi » yang di, yang yi
hua ren » hua chen

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

• Performing a fuzzy search may retrieve terms with similar spellings: yang ((yang jui) or (yang xi)) hua ren sang minh ((cong seo) or (duong van)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yang ((yang jui) OR (yang xi)) hua ren sang minh ((cong seo) OR (duong van)) ;.
• Adding a wildcard symbol may retrieve word variants: yang ((yang jui) or (yang xi)) hua ren sang minh ((cong seo) or (duong van)) ;*.