Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
va triet » va thiet, va trien, ve triet
van chat » cao chat
hanh lai » hanh lam, hanh tai, thanh lap
ban hanh » ban hang
va cham » va chat, va tham
sach ky » sac ky, sach y, sach ty
duc ban » duc tan, duc van, dua ban
nang xa » nang x, lang xa, nang ma
so sach » so sanh, bo sach, co sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ky nang xa hoi. hieu ((va cham) or (van chat)) duc ban hanh lai ((cua triet) or (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky nang xa hoi. hieu ((va cham) OR (van chat)) duc ban hanh lai ((cua triet) OR (va triet)).
• Adding a wildcard symbol may retrieve word variants: so sach ky nang xa hoi. hieu ((va cham) or (van chat)) duc ban hanh lai ((cua triet) or (va triet))*.