Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van hanh » van thanh, ban hanh, van ban
van anh » van thanh, tuan anh, van minh
va tham » van tham, va thanh, va thuat
va cham » va chat
sac ky » cac ky, sai ky
vi cua » vai cua, di cua
tu sac » tu sach, tu cac, tu san
x hoi » xa hoi, o hoi, x ho

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

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