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