Perhaps you should try some spelling variations:
thieu dien » thieu nien, thieu bien, tieu dien
hanh tai » thanh tai, hang tai, han tai
su triet » su viet, su tien, ve triet
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang ma » tang ma, sang ma, nang cao
cac xuc » cam xuc, cac nuoc, chat xuc
va hanh » van hanh, va thanh, va danh
ma hoi » mai hoi, xa hoi, ma hoa
nuoc » quoc, duoc, ngoc

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 hoi. thieu dien ((cac xuc) or (dat nuoc)) va hanh tai ((su triet) or (va thiet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang ma hoi. thieu dien ((cac xuc) OR (dat nuoc)) va hanh tai ((su triet) OR (va thiet)).
• Adding a wildcard symbol may retrieve word variants: te sach ky nang ma hoi. thieu dien ((cac xuc) or (dat nuoc)) va hanh tai ((su triet) or (va thiet))*.