Perhaps you should try some spelling variations:
sang tao » hang tai
sang lap » sang ma, sang tai, dan lap
ban hanh » ban hang
hieu su » hieu sau, tieu su, hieu so
su chao » su cao, sau chan
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
xu ban » xuc ban, tu ban, vu ban
vi cua » vai cua, di cua
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 lap) or (sang tao)) hoi. hieu su chao xu ban hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky ((sang lap) OR (sang tao)) hoi. hieu su chao xu ban hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: tu sac ky ((sang lap) or (sang tao)) hoi. hieu su chao xu ban hanh vi cua te*.