Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
cua triet » cua viet, su triet, va triet
toc sach » hoc sach, doc sach, thuoc sach
va thanh » gia thanh, va tinh, le thanh
su sach » so sach, vu sach
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
ve pham » vi pham, v pham, ve phan
ma hoi » mai hoi, xa hoi, ma hoa
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (toc sach)) ky nang ma hoi. hieu ve pham duc ((va thanh) or (ban thanh)) vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (toc sach)) ky nang ma hoi. hieu ve pham duc ((va thanh) OR (ban thanh)) vi cua triet.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (toc sach)) ky nang ma hoi. hieu ve pham duc ((va thanh) or (ban thanh)) vi cua triet*.