Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
ho chieu » theo chieu, hoc thieu, doi chieu
hanh han » hanh nhan, hanh phan, hanh san
vat dung » van dung, viet dung, mat duong
cong tan » cong tac, cong san, cong thanh
tan than » tan thanh, tan tran, ban than
va dung » van dung, va duong, va ung
than ma » than man, than va, khan ma

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - hanh han ((va dung) OR (vat dung)) cong tan than ma~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - hanh han ((va dung) OR (vat dung)) cong tan than ma".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh han ((va dung) OR (vat dung)) cong tan than ma*.