Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
cong van » cong vang, cong san, song van
van dung » van dong, xay dung, tin dung
tac toan » tap toan, tam toan, hach toan
tap doan » tap quan

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 cong van dung cong ((tac toan) or (tap doan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh cong van dung cong ((tac toan) OR (tap doan)) cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh cong van dung cong ((tac toan) or (tap doan)) cau*.