Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van hanh » van thanh, ban hanh, van anh
so sach » so sanh, bo sach, co sach
xang xa » lang xa, mang xa, ang xa
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, chat xuc
va dinh » van dinh, va kinh, va tinh
y xang » ty xang
ve cac » va cac, vien cac
de cua » le cua, te cua, dieu cua

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: so sach y xang xa hoi. hieu ve cac xuc ((van hanh) OR (va dinh)) de cua triet~.
• Adding a wildcard symbol may retrieve word variants: so sach y xang xa hoi. hieu ve cac xuc ((van hanh) or (va dinh)) de cua triet*.