Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
dung cong » dung trong
tang cua » mang cua, hang cua, tang luan
hang tai » hang va, dung tai
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan ban » van ban
tinh » trinh, dinh, minh

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((diep tinh) or (chieu sach)) - hanh ((tang cua) or (hang tai)) dung cong tac toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((diep tinh) OR (chieu sach)) - hanh ((tang cua) OR (hang tai)) dung cong tac toan ban.
• Adding a wildcard symbol may retrieve word variants: theo ((diep tinh) or (chieu sach)) - hanh ((tang cua) or (hang tai)) dung cong tac toan ban*.