Perhaps you should try some spelling variations:
hanh dong » anh dong, ha dong
nam thuc » nam thuoc, am thuc, nam thu
dong cua » dung cua, cong cua, huong cua
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
nam tu » nam thu

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