Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh hang » thanh hang, hang hang, hanh han
ho chieu » theo chieu, hoc thieu, doi chieu
cong tan » cong san, cong thanh, cong ty
cong tac » cong ty
than man » than ma, thanh san, tran manh
hang ca » hang va, nang cao, hang tai
ca dong » cao dong, cau dong, cua dong

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 hang ca dong ((cong tan) OR (cong tac)) than man~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - hanh hang ca dong ((cong tan) OR (cong tac)) than man".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh hang ca dong ((cong tan) OR (cong tac)) than man*.