Perhaps you should try some spelling variations:
dinh vai » dinh van, dinh vi, dinh va
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
hieu va » lieu va, hieu qua
va dinh » van dinh, va kinh, va tinh
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky tang xa hoi. hieu va ((tao duoc) or (giao duc)) va dinh vai ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky tang xa hoi. hieu va ((tao duoc) OR (giao duc)) va dinh vai ((cua tre) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: tu sac ky tang xa hoi. hieu va ((tao duoc) or (giao duc)) va dinh vai ((cua tre) or (cuu tre))*.