Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
hieu van » hieu va, thien van, lieu va
ky sang » ky nang, ky dang, ky tang
sang ma » tang ma, nang ma, sang tao
van cam » van nam, van lam, van cau
xuc ban » duc ban, cuc ban, quoc ban
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, ma hoa
di cua » dai cua, doi cua, do cua
de cua » le cua, te cua, dieu cua

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 sac ky sang ma hoi. hieu van cam xuc ban thanh ((di cua) OR (de cua)) vat~.
• Adding a wildcard symbol may retrieve word variants: tu sac ky sang ma hoi. hieu van cam xuc ban thanh ((di cua) or (de cua)) vat*.