Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
toc chieu » toc thieu, doc hieu, hoc thieu
manh tung » manh hung, thanh tung
tdung dat » trung dai, vung dat, dong dat
tung dan » dung dan, huong dan, trung dai
dan dung » van dung, tin dung, ap 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 - manh tung dan dung ((tdung dat) or (dung dat)) phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc chieu sach - manh tung dan dung ((tdung dat) OR (dung dat)) phan tu*.