Perhaps you should try some spelling variations:
ky sang » ky nang, ky dang, ky tang
sang ma » tang ma, nang ma, sang tao
tieu su » thieu so
hieu so » thieu so
va hanh » van hanh, va thanh, va danh
tu bai » tu ban, tu bat, te bai
bai ky » ban ky, sai ky, bac ky
ma hoi » mai hoi, xa hoi, ma hoa
vi cua » vai cua, di cua
cua te » cua tu
su va » su van, tu va

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu bai ky sang ma hoi. ((tieu su) OR (hieu so)) cao su va hanh vi cua te~.
• Adding a wildcard symbol may retrieve word variants: tu bai ky sang ma hoi. ((tieu su) or (hieu so)) cao su va hanh vi cua te*.