Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
cua triet » cua viet, su triet, va triet
ban hanh » ban hang
sach ky » sac ky, sach y, sach ty
va pham » van pham, va phat, va phap
duc ban » duc tan, duc van, dua ban
hanh de » hanh ve, hanh kem
de cua » le cua, te cua, dieu cua
o hoc » mo hoc, so hoc, y hoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sach ky nang ((((o hoc) or (co hoc))) or (xa hoi)). lieu va pham duc ban hanh de cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach ky nang ((((o hoc) OR (co hoc))) OR (xa hoi)). lieu va pham duc ban hanh de cua triet.
• Adding a wildcard symbol may retrieve word variants: thuoc sach ky nang ((((o hoc) or (co hoc))) or (xa hoi)). lieu va pham duc ban hanh de cua triet*.