Perhaps you should try some spelling variations:
chieu chien » thien chien, hieu hien
chien cac » hien cac, thien cac, chien cuoc
va triet » va thiet, va trien, ve triet
dinh vai » dinh van, dinh va, dinh tai
cua tre » cua te, cuu tre, cua triet
dinh vi » dinh ve, dinh viet, dinh tri
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
cac lo » cac lop, cac co, cac bo
lo va » lo van, lao va, ly va

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky nang xa hoi. chieu chien cac lo va ((dinh vai) OR (dinh vi)) ((cua tre) or (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang xa hoi. chieu chien cac lo va ((dinh vai) OR (dinh vi)) ((cua tre) OR (va triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang xa hoi. chieu chien cac lo va ((dinh vai) OR (dinh vi)) ((cua tre) or (va triet))".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang xa hoi. chieu chien cac lo va ((dinh vai) OR (dinh vi)) ((cua tre) or (va triet))*.