Perhaps you should try some spelling variations:
lam thuoc » nam thuoc, am thuc, cay thuoc
ban thanh » ban hanh, ban hang
thanh vi » hanh vi, thanh va, thanh ve
hieu van » thien van, lieu va, hieu ve
ca tren » cau tren, cu tren, la tren
lam xuc » cam xuc, lam duoc
hieu va » lieu va, hieu qua
nang ma » tang ma, sang ma, nang cao
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, ma hoa
tu sac » tu sach, tu cac, tu san
vi ca » vit ca, li ca, va ca

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