Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
te thai » te tai, te thi, te than
thai ky » thoi ky, than ky, thai ly
nang xa » nang x, lang xa, nang ma
nam xuc » cam xuc, nam xua, nam thuc
va dinh » van dinh, va kinh, va tinh
dinh vi » dinh ve, dinh viet, dinh tri
cua tre » cuu tre, cua triet, dua tren
xuc va » duc va, tuc va, luc va
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: te thai ky nang xa hoi. hieu van nam xuc va dinh vi ((cua tre) OR (cua te))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te thai ky nang xa hoi. hieu van nam xuc va dinh vi ((cua tre) OR (cua te))".
• Adding a wildcard symbol may retrieve word variants: te thai ky nang xa hoi. hieu van nam xuc va dinh vi ((cua tre) OR (cua te))*.