Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
hieu va » lieu va, hieu qua
cao duc » dao duc, cao suc, giao duc
va hanh » van hanh, va thanh, va danh
cuu tre » cua tre, cau tren, cau treo
te san » te ban, ke san, tu san
san ky » sang ky, van ky, dan ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: te san ky nang x ho. ((hieu va) or (hieu ky)) cao duc va hanh vi ((su triet) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te san ky nang x ho. ((hieu va) OR (hieu ky)) cao duc va hanh vi ((su triet) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: te san ky nang x ho. ((hieu va) or (hieu ky)) cao duc va hanh vi ((su triet) or (cuu tre))*.