Perhaps you should try some spelling variations:
cua triet » cua viet, 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
va thanh » gia thanh, ban thanh, va tinh
su tien » su kien, su hien, tu tieng
nang xa » nang x, lang xa, nang ma
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky

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 xa hoi. hieu van phat duc ((van hanh) or (va thanh)) vi ((cua triet) or (su tien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang xa hoi. hieu van phat duc ((van hanh) OR (va thanh)) vi ((cua triet) OR (su tien)).
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang xa hoi. hieu van phat duc ((van hanh) or (va thanh)) vi ((cua triet) or (su tien))*.