Perhaps you should try some spelling variations:
tieu sach » chieu sach, dien sach, te sach
tinh bang » tinh sang, tinh lang, tinh quang
chua bang » chu bang, chua nang, chua xang
cua bang » cua ban, cua dang, cua hang
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 tieu sach - tinh bang ((cua bang) or (chua bang)) cong tac toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - tinh bang ((cua bang) OR (chua bang)) cong tac toan tap.
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - tinh bang ((cua bang) or (chua bang)) cong tac toan tap*.