Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cac thuc » cach thuc, cac thu, can thuc
thuc gia » thuc giai, thue gia, thuc dia
thanh vi » hanh vi, thanh va, thanh ve
so sach » so sanh, bo sach, co sach
sach ly » sach y, sach lo, sach ty
ly vang » ly hang, ly van, ly quang
vang xa » lang xa, mang xa, ang xa
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, dua tren

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ly vang xa hoi. hieu va cac thuc gia thanh vi ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ly vang xa hoi. hieu va cac thuc gia thanh vi ((cua tre) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: so sach ly vang xa hoi. hieu va cac thuc gia thanh vi ((cua tre) or (cua triet))*.