Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu van » thien van, lieu va, hieu ve
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
nam xuc » cam xuc, nam xua, nam thuc
va dinh » van dinh, va kinh, va tinh
dinh ve » dinh ket, dinh van
cua tre » cua te, cuu tre, dua tren
tai ky » thai ky, trai ky, sai ky
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: te tai ky nang xa hoi. ((hieu van) OR (hieu va)) nam xuc va dinh ve ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te tai ky nang xa hoi. ((hieu van) OR (hieu va)) nam xuc va dinh ve ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te tai ky nang xa hoi. ((hieu van) OR (hieu va)) nam xuc va dinh ve ((cua tre) or (cua triet))".
• Adding a wildcard symbol may retrieve word variants: te tai ky nang xa hoi. ((hieu van) OR (hieu va)) nam xuc va dinh ve ((cua tre) or (cua triet))*.