Perhaps you should try some spelling variations:
van pham » san pham, van phat, van tham
van phan » van phong, van thanh, luan phan
van hanh » van thanh, ban hanh, van anh
va triet » va thiet, va trien, ve triet
cua viet » ca viet, hoa viet, cua vat
nang xa » nang x, lang xa, nang ma
duc van » duc va, duc tan, duc manh
tu sai » tu bai, tu san, tu cai
sai ky » sac 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 sai ky nang xa hoi. hieu ((van pham) or (van phan)) duc van hanh vi ((va triet) or (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky nang xa hoi. hieu ((van pham) OR (van phan)) duc van hanh vi ((va triet) OR (cua viet)).
• Adding a wildcard symbol may retrieve word variants: tu sai ky nang xa hoi. hieu ((van pham) or (van phan)) duc van hanh vi ((va triet) or (cua viet))*.