Perhaps you should try some spelling variations:
nam thuc » nam thuoc, am thuc, nam thu
hanh vai » hanh vi, hanh va, hanh tai
hieu van » hieu va, thien van, hieu ve
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
vai cua » dai cua, hai cua, lai cua
nam xuc » cam xuc, nam xua, nam duoc
sach ky » sac ky, sach y, sach ty
danh ma » anh ma, danh ca, hanh ma
ky danh » ky anh, ky dang
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 (lieu va)) ((nam xuc) OR (nam thuc)) van 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 (lieu va)) ((nam xuc) OR (nam thuc)) van hanh vai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky danh ma hoa. ((hieu van) or (lieu va)) ((nam xuc) OR (nam thuc)) van hanh vai cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ky danh ma hoa. ((hieu van) or (lieu va)) ((nam xuc) OR (nam thuc)) van hanh vai cua tre*.