Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nam thuc » nam thuoc, nam thu, nam tu
ky lang » ky nang, ky dang, ky tang
lang ha » long ha
hieu le » hieu ve, hieu he, hieu ly
va hanh » van hanh, va thanh, va danh
tu sac » tu sach, tu san, tu bac
ha hoi » hoa hoi, ha noi, xa hoi
vi cua » vai cua, di cua

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) OR (tu cac)) ky lang ha hoi. hieu le ((nam thuc) OR (am thuc)) va hanh vi cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sac) or (tu cac)) ky lang ha hoi. hieu le ((nam thuc) OR (am thuc)) va hanh vi cua triet~".
• Adding a wildcard symbol may retrieve word variants: ((tu sac) or (tu cac)) ky lang ha hoi. hieu le ((nam thuc) OR (am thuc)) va hanh vi cua triet*.