Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hoc bao » hoc cao, hoc bai, hoc bo
cuu ban » cuu van, cua ban, cuu san
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
tao hoa » bao hoa, tao ho, tao hop
tao hoi » tao khoi, tao boi, tay hoi
ky sang » ky nang, ky dang, ky tang
sac ky » cac ky, sai ky
vi cua » vai cua, di cua
tu sac » tu sach, tu cac, tu san

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: tu sac ky sang ((tao hoa) OR (tao hoi)). hieu ve cham ((cuu ban) OR (hoc bao)) hanh vi cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky sang ((tao hoa) OR (tao hoi)). hieu ve cham ((cuu ban) or (hoc bao)) hanh vi cua triet~".
• Adding a wildcard symbol may retrieve word variants: tu sac ky sang ((tao hoa) OR (tao hoi)). hieu ve cham ((cuu ban) or (hoc bao)) hanh vi cua triet*.