Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
va thanh » gia thanh, ban thanh, va tinh
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va danh, ban hanh
dau tuc » dau tu, dao tuc, cau truc
su sach » so sach, vu sach
hieu va » lieu va, hieu qua
xang ma » tang ma, nang ma, sang ma
so sanh » do sanh
ma hoi » mai hoi, xa hoi, ma hoa
va dau » va dao

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) or (so sanh)) ty xang ma hoi. hieu va dau tuc ((va hanh) or (va thanh)) vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sanh)) ty xang ma hoi. hieu va dau tuc ((va hanh) OR (va thanh)) vai cua triet.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sanh)) ty xang ma hoi. hieu va dau tuc ((va hanh) or (va thanh)) vai cua triet*.