Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
hieu van » hieu va, thien van, lieu va
nang ma » tang ma, sang ma, nang cao
cua tre » cua te, cuu tre, cua triet
va hanh » van hanh, va thanh, va danh
nam tu » nam thu, nam thuc
tu sai » tu bai, tu san, tu cai
sai ky » sac ky
dam tu » cam tu, tam tu, dam thuc
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sai ky nang ma hoi. hieu van ((dam tu) or (nam tu)) va hanh vi ((cua tre) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky nang ma hoi. hieu van ((dam tu) OR (nam tu)) va hanh vi ((cua tre) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: tu sai ky nang ma hoi. hieu van ((dam tu) or (nam tu)) va hanh vi ((cua tre) or (su triet))*.