Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
toc chieu » toc thieu, doc hieu, hoc thieu
nhan dang » nhan dan, phan dang, tran dang
dang dang » dung dang, dang bang, dang dan
dang dung » dan dung, dang hung, dang quang
tdung dat » trung dai, vung dat, dong dat
dung dat » dung va, dung tai

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 - nhan dang dang dung ((tdung dat) or (dung dat)) phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc chieu sach - nhan dang dang dung ((tdung dat) OR (dung dat)) phan tu.
• Adding a wildcard symbol may retrieve word variants: toc chieu sach - nhan dang dang dung ((tdung dat) or (dung dat)) phan tu*.