Perhaps you should try some spelling variations:
thanh vi » hanh vi, thanh va, thanh ve
va thanh » gia thanh, ban thanh, va tinh
kho tang » cao tang
cam thuc » nam thuc, cam thu, can thuc
cua tre » cua te, cuu tre, cua triet
hieu va » lieu va, hieu qua
ky tang » ky nang, ky dang, ky trong
ma hoi » mai hoi, xa hoi, ma hoa
vi cua » vai cua, di cua
tu cai » tu cac, tu can, tu bai

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 cai ((ky tang) OR (kho tang)) ma hoi. hieu va ((cam thuc) OR (am thuc)) va thanh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cai ((ky tang) OR (kho tang)) ma hoi. hieu va ((cam thuc) or (am thuc)) va thanh vi cua tre~".
• Adding a wildcard symbol may retrieve word variants: tu cai ((ky tang) OR (kho tang)) ma hoi. hieu va ((cam thuc) or (am thuc)) va thanh vi cua tre*.