Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ban hanh » ban hang
hanh di » hanh vi, hanh de, hang di
xuc ban » duc ban, cuc ban, quoc ban
su sach » so sach, vu sach
nang ma » tang ma, sang ma, nang cao
sach v » sach va, sach y, sach 2
va cao » va cac, va co, va dao
di cua » dai cua, doi cua, de cua
va cam » va cham, va cac, va cai

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 v ((nang ma) OR (nang x)) hoi. hieu ((va cam) OR (va cao)) xuc ban hanh di cua triet~.
• Adding a wildcard symbol may retrieve word variants: su sach v ((nang ma) or (nang x)) hoi. hieu ((va cam) or (va cao)) xuc ban hanh di cua triet*.