Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh tang » hanh trang, anh tang, hanh tung
hanh mang » nhanh mang, hanh trang, nhanh lang
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
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: theo ((chuc nang) or (chieu sach)) - ((hanh tang) or (hanh mang)) cua dung cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chuc nang) OR (chieu sach)) - ((hanh tang) OR (hanh mang)) cua dung cong tac toan cao.
• Adding a wildcard symbol may retrieve word variants: theo ((chuc nang) or (chieu sach)) - ((hanh tang) or (hanh mang)) cua dung cong tac toan cao*.