Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
tinh bang » tinh sang, tinh lang, tinh quang
chua nang » chuc nang, chua xang, kha nang
cua bang » chua bang, cua ban, cua dang
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan tap » toan ban

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

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