Perhaps you should try some spelling variations:
hieu van » thien van, lieu va, hieu ve
nam thuc » nam thuoc, am thuc, nam thu
vat hanh » vat thanh, van hanh, va hanh
hanh vai » hanh vi, hanh va, hanh tai
te sach » toc sach
sach ky » sac ky, sach y, sach ty
ky danh » ky anh, ky dang
danh ma » anh ma, danh ca, hanh ma
hieu va » lieu va, hieu qua
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky danh ma hoa. ((hieu van) or (hieu va)) nam thuc vat hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky danh ma hoa. ((hieu van) OR (hieu va)) nam thuc vat hanh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach ky danh ma hoa. ((hieu van) or (hieu va)) nam thuc vat hanh vai cua tre*.