Perhaps you should try some spelling variations:
sang minh » kang minah, anh minh, song min
congo shu » cong shu
duong van » cong van, duong anh
yang jui » yang judy, yang di
ren sang » lee sang, le sang, ren weng
yang xi » yang di
yang yi » yang di
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) OR (yang yi)))) hua ren sang minh ((congo shu) or (duong van)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yang ((yang jui) OR (((yang xi) OR (yang yi)))) hua ren sang minh ((congo shu) OR (duong van)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "yang ((yang jui) or (((yang xi) OR (yang yi)))) hua ren sang minh ((congo shu) or (duong van)) ;*".