Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
tranh va » tranh van, trang va, thanh va
trinh va » trinh van, trinh vat, trinh ve
van cong » van dong, van phong, phan cong
cong san » cong tac
san than » sang than, san thanh, ban than
than cao » toan cao, thai cao, than cap

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 va) OR (trinh va)) van cong san than cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - canh ((tranh va) OR (trinh va)) van cong san than cao".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - canh ((tranh va) OR (trinh va)) van cong san than cao*.