Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van hanh » van thanh, ban hanh, van anh
hieu ve » hieu va, hieu van
va danh » va dinh, va dan, va hanh
vai cua » dai cua, hai cua, lai cua
tu sai » tu bai, tu san, tu cai
sai ky » sac ky
x hoi » xa hoi, o hoi, x ho
ve am » va am

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sai ky nang x hoi. hieu ve am thuc ((va danh) or (van hanh)) vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky nang x hoi. hieu ve am thuc ((va danh) OR (van hanh)) vai cua triet.
• Adding a wildcard symbol may retrieve word variants: tu sai ky nang x hoi. hieu ve am thuc ((va danh) or (van hanh)) vai cua triet*.