Perhaps you should try some spelling variations:
doanh dan » doanh ban, doanh van, doanh dao
hieu van » hieu va, thien van, lieu va
thu sac » thu sach, thu san, thu xac
nang ma » tang ma, sang ma, nang cao
van cam » van nam, van lam, van cau
dan cua » dan ca, ban cua, dai cua
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, ma hoa
cua te » cua tu

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: thu sac ky nang ma hoi. hieu van cam ((xuc vay) OR (xuc hay)) doanh dan cua te~.
• Adding a wildcard symbol may retrieve word variants: thu sac ky nang ma hoi. hieu van cam ((xuc vay) or (xuc hay)) doanh dan cua te*.