Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
hieu van » hieu va, thien van, lieu va
thanh vi » hanh vi, thanh va, thanh ve
lam duoc » nam duoc, luat duoc, lam thuoc
cua tre » cua te, cua triet, dua tren
ky tang » ky nang, ky dang, kho tang
tang ma » mang may, tang van
cuu tre » cau tren, cau treo
lam xuc » cam xuc
tu sac » tu sach, tu cac, tu san
ma hoi » mai hoi, xa hoi, ma hoa
sac ky » cac ky, sai ky

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 tang ma hoi. hieu van ((lam xuc) OR (lam duoc)) ban thanh vi ((cuu tre) OR (cua tre))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky tang ma hoi. hieu van ((lam xuc) or (lam duoc)) ban thanh vi ((cuu tre) OR (cua tre))~".
• Adding a wildcard symbol may retrieve word variants: tu sac ky tang ma hoi. hieu van ((lam xuc) or (lam duoc)) ban thanh vi ((cuu tre) OR (cua tre))*.