Perhaps you should try some spelling variations:
sach chu » sach che, sach thu, sach thue
chu lang » chi lang, chu bang, cho lang
danh lai » danh sai, gianh lai, dinh lam
va triet » va thiet, va trien, ve triet
te sach » toc sach
lang xa » lang ha, dang xay, lang van
hieu va » lieu va
va danh » va dinh, va dan, va hanh
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 lang xa hoi. ((hieu va) or (hieu qua)) giao duc va danh lai va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach chu lang xa hoi. ((hieu va) OR (hieu qua)) giao duc va danh lai va triet.
• Adding a wildcard symbol may retrieve word variants: te sach chu lang xa hoi. ((hieu va) or (hieu qua)) giao duc va danh lai va triet*.