Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
tranh da » tranh dau, trinh da, tranh ha
cong van » cong vang, song van, cong tan
cong san » cong tac
tuan cao » toan cao, juan cao, quang cao
da nang » cam nang, kha nang, cao nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sach - canh tranh da nang ((cong van) OR (cong san)) tuan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - canh tranh da nang ((cong van) OR (cong san)) tuan cao".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - canh tranh da nang ((cong van) OR (cong san)) tuan cao*.