Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
hanh vai » hanh vi, hanh va, hanh tai
va triet » va thiet, va trien, ve triet
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
va hanh » van hanh, va thanh, va danh
qua ca » qua cac, qua cua, qua cai
ca thu » cac thu, cam thu, ca tru
thu va » thuc va, thue va, tu va
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: so sach ky nang x hoi. hieu qua ca thu va hanh vai ((cua triet) or (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky nang x hoi. hieu qua ca thu va hanh vai ((cua triet) OR (va triet)).
• Adding a wildcard symbol may retrieve word variants: so sach ky nang x hoi. hieu qua ca thu va hanh vai ((cua triet) or (va triet))*.