Perhaps you should try some spelling variations:
sang tao » hang tai
hieu van » hieu va, thien van, lieu va
ban hang » ngan hang
te sach » toc sach
sach ky » sac ky, sach y, sach ty
ky sang » ky nang, ky dang, ky tang
tao hoi » tao khoi, tao boi, tay hoi
van cam » van nam, van lam, van cau
cam duc » cam xuc, cao duc, pham duc
cu tren » tu tren, dua tren
dai cu » dai cua, dai tu, dai xu

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: te sach ky sang tao hoi. hieu van cam duc ((ban hanh) OR (ban hang)) dai cu tren~.
• Adding a wildcard symbol may retrieve word variants: te sach ky sang tao hoi. hieu van cam duc ((ban hanh) or (ban hang)) dai cu tren*.