Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van hanh » van thanh, ban hanh, van anh
cao hoi » cau hoi, co hoi, cao hoc
ve cham » va cham, ve chat, vu cham
va hanh » va thanh, va danh, ban hanh
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
ve cac » va cac, vien cac
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky nang cao hoi. hieu ((ve cham) or (ve cac)) luc ((va hanh) OR (van hanh)) vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky nang cao hoi. hieu ((ve cham) OR (ve cac)) luc ((va hanh) OR (van hanh)) vi cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky nang cao hoi. hieu ((ve cham) or (ve cac)) luc ((va hanh) OR (van hanh)) vi cua triet".
• Adding a wildcard symbol may retrieve word variants: su sac ky nang cao hoi. hieu ((ve cham) or (ve cac)) luc ((va hanh) OR (van hanh)) vi cua triet*.