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
kho tang » cao tang
lam duoc » nam duoc, luat duoc, lam thuoc
cuu tre » cua tre, cau tren, cau treo
lam xuc » cam xuc
ky tang » ky nang, ky dang, ky trong
ma hoi » mai hoi, xa hoi, ma hoa
vi cuu » vi luu, vinh cuu
tu sac » tu sach, tu cac, tu san

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) OR (kho 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 ((ky tang) OR (kho 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 ((ky tang) OR (kho tang)) ma hoi. hieu van ((lam xuc) or (lam duoc)) ban thanh vi cuu tre*.