Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tang » thanh thang, thanh trang, thanh tung
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
tang vat » tang van, dang vat, bang vat
vat dung » van dung, va dung, viet dung
cong tan » cong tac, cong san, cong thanh
phan cau » phan dau, phan tu, phan lap
phan cac » nhan cach, phan dau, phan lap
toan cao » toan ban, toan tap

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 - thanh tang vat dung cong tan ((((phan cau) OR (phan cac))) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh tang vat dung cong tan ((((phan cau) OR (phan cac))) OR (toan cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh tang vat dung cong tan ((((phan cau) OR (phan cac))) or (toan cao))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh tang vat dung cong tan ((((phan cau) OR (phan cac))) or (toan cao))*.