Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van hanh » van thanh, ban hanh, van anh
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
ve ban » te ban, va ban, vu ban
ve bao » te bao, va bao
bo van » vo van, so van, do van
vi cua » vai cua, di cua
x hoi » xa hoi, o hoi, x ho

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang x hoi. hieu ((ve ban) OR (ve bao)) bo van hanh vi cua triet~".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang x hoi. hieu ((ve ban) OR (ve bao)) bo van hanh vi cua triet*.