Perhaps you should try some spelling variations:
cach thuc » anh thuc
cua triet » cua viet, su triet, va triet
va hanh » van hanh, va thanh, ban hanh
vai cua » dai cua, hai cua, lai cua
va danh » va dinh, va dan, dia danh
cac thu » cac thoi
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
sac ky » cac ky, sai ky
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 nang xa hoi. hieu ve ((cach thuc) OR (cac thu)) ((va hanh) OR (va danh)) vai cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang xa hoi. hieu ve ((cach thuc) or (cac thu)) ((va hanh) OR (va danh)) vai cua triet~".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang xa hoi. hieu ve ((cach thuc) or (cac thu)) ((va hanh) OR (va danh)) vai cua triet*.