Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu hien » bieu hien, dieu hien, chieu chien
dinh vai » dinh van, dinh vi, dinh va
hien cac » thien cac, vien cac, hieu cac
nang xa » nang x, lang xa, nang ma
sach ky » sac ky, sach ty, sach kem
va dinh » van dinh, va kinh, va tinh
cua tre » cua te, cuu tre, dua tren
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.

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