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

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