Perhaps you should try some spelling variations:
cua triet » su triet, va triet
hieu van » hieu va, thien van, lieu va
van phat » va phat, van chat, van phan
phat duc » pham duc, phan duc, phan duoc
van hanh » van thanh, ban hanh, van anh
cua viet » ca viet, hoa viet, cua vat
duc van » duc va, duc tan, duc manh
tu bai » tu ban, tu bat, te bai
bai ky » ban ky, sai ky, bac ky
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 bai ky nang x hoi. hieu van phat duc van hanh kem ((cua triet) or (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu bai ky nang x hoi. hieu van phat duc van hanh kem ((cua triet) OR (cua viet)).
• Adding a wildcard symbol may retrieve word variants: tu bai ky nang x hoi. hieu van phat duc van hanh kem ((cua triet) or (cua viet))*.