Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
toc chieu » toc thieu, doc hieu, hoc thieu
hanh tang » hanh trang, anh tang, hanh mang
tdung dat » trung dai, vung dat, dong dat
tang tan » tang van, tang tai, tang dan
tan dung » tran dung, tin dung, van dung
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 - hanh tang tan dung ((tdung dat) or (dung dat)) phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc chieu sach - hanh tang tan dung ((tdung dat) OR (dung dat)) phan tu.
• Adding a wildcard symbol may retrieve word variants: toc chieu sach - hanh tang tan dung ((tdung dat) or (dung dat)) phan tu*.