Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ban hanh » ban hang
duoc ban » duc ban, quoc ban, buoc ban
hanh vai » hanh vi, hanh va, hanh tai
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
ve tao » ve bao, de tao, ve tac
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky nang x ho. hieu ve tao duoc ban hanh vai ((cua triet) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang x ho. hieu ve tao duoc ban hanh vai ((cua triet) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang x ho. hieu ve tao duoc ban hanh vai ((cua triet) or (cua te))*.