Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
sinh trong » sinh truong, sinh trung, dinh trong
toc chieu » toc thieu, doc hieu, hoc thieu
trong dan » trong dang, trong san, trong tan
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: toc chieu sach - sinh trong dan dung ((dong dat) OR (dung dat)) phan tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc chieu sach - sinh trong dan dung ((dong dat) OR (dung dat)) phan tu".
• Adding a wildcard symbol may retrieve word variants: toc chieu sach - sinh trong dan dung ((dong dat) OR (dung dat)) phan tu*.