Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
va thanh » gia thanh, ban thanh, va tinh
thai cua » than cua, tai cuc, tri cua
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
van bac » van ban, van bao, van hac
va hanh » van hanh, va danh, ban hanh
x hoi » xa hoi, o hoi, x ho

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 ky nang x hoi. hieu van bac xuc ((va hanh) OR (va thanh)) thai cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ky nang x hoi. hieu van bac xuc ((va hanh) OR (va thanh)) thai cua triet".
• Adding a wildcard symbol may retrieve word variants: so sach ky nang x hoi. hieu van bac xuc ((va hanh) OR (va thanh)) thai cua triet*.