Perhaps you should try some spelling variations:
sang tai » hang tai, sang tao, tang tai
sang lai » sang lap, mang lai, sang mai
van hanh » van thanh, ban hanh, van anh
tieu su » thieu so
va hanh » va thanh, va danh, ban hanh
su chao » su cao, sau chan
di cua » dai cua, doi cua, de cua
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky ((sang lai) or (sang tai)) hoi. tieu su chao xu ((va hanh) OR (van hanh)) di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky ((sang lai) OR (sang tai)) hoi. tieu su chao xu ((va hanh) OR (van hanh)) di cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky ((sang lai) or (sang tai)) hoi. tieu su chao xu ((va hanh) OR (van hanh)) di cua te".
• Adding a wildcard symbol may retrieve word variants: tu sac ky ((sang lai) or (sang tai)) hoi. tieu su chao xu ((va hanh) OR (van hanh)) di cua te*.