Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doc chieu » doc hieu, doi chieu, toc thieu
hanh dung » thanh dung, anh dung, hanh dong
dung dan » dung san, tung dan, huong dan
dan dung » van dung, tin dung, ap dung
dong dat » dong vat, dong ha, dong tai
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: doc chieu sach - hanh dung dan dung ((dong dat) OR (dung dat)) phan tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc chieu sach - hanh dung dan dung ((dong dat) OR (dung dat)) phan tu".
• Adding a wildcard symbol may retrieve word variants: doc chieu sach - hanh dung dan dung ((dong dat) OR (dung dat)) phan tu*.