Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
thu sach » tu sach, thuat sach, thuoc sach
hieu van » hieu va, thien van, lieu va
duoc ban » duc ban, quoc ban, buoc ban
ban hanh » ban hang
hanh vai » hanh vi, hanh va, hanh tai
su triet » su viet, su tien, ve triet
sach ky » sac ky, sach y, sach ty
van tao » van thao, vang tao, van tai
cua te » cua tu
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: thu sach ky nang x hoi. hieu van tao duoc ban hanh vai ((((cua triet) or (su triet))) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang x hoi. hieu van tao duoc ban hanh vai ((((cua triet) OR (su triet))) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang x hoi. hieu van tao duoc ban hanh vai ((((cua triet) or (su triet))) or (cua te))*.