Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thong dung » thong cong, thong thuong
toc chieu » toc thieu, doc hieu, hoc thieu
trung cap » truong cao, trung tam
dung sat » duong sat, dung dat, dung sai
sat sach » mat sach, dat sach, sang sach
sach dao » lanh dao

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc chieu sach - thanh ((dung cho) or (trung cap)) thong dung sat sach dao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc chieu sach - thanh ((dung cho) OR (trung cap)) thong dung sat sach dao*.