Perhaps you should try some spelling variations:
sach chu » sach che, sach thu, sach thue
chu bang » thu bang, chuc nang, chu quang
hanh lai » hanh lam, hanh tai, thanh lap
va triet » va thiet, va trien, ve triet
te sach » toc sach
bang xa » lang xa, bang va, mang xa
hieu va » lieu va
va hanh » van hanh, va thanh, va danh
lai va » loai va, mai va, dai va

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach chu bang xa hoi. ((hieu va) or (hieu qua)) giao duc va hanh lai va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach chu bang xa hoi. ((hieu va) OR (hieu qua)) giao duc va hanh lai va triet.
• Adding a wildcard symbol may retrieve word variants: te sach chu bang xa hoi. ((hieu va) or (hieu qua)) giao duc va hanh lai va triet*.