Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh vi » hanh vi, thanh va, thanh ve
cac khoi » cac thoi, cac khoan, cach thoi
lam duoc » nam duoc, luat duoc, lam thuoc
hieu van » hieu va, thien van, lieu va
cuu tre » cua tre, cau tren, cau treo
lam xuc » cam xuc
sac kho » suc khoe, dac khoa, cac khoa
tang ma » mang may, tang van
ma hoi » mai hoi, xa hoi, ma hoa
vi cuu » vi luu, vinh cuu

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