Perhaps you should try some spelling variations:
thanh tung » thanh cong
tham trong » pham trong, thay trong, than trong
tieu sach » chieu sach, dien sach, te sach
tung tham » tuong tham, tung pham, cung tham
cong tac » cong ty
than cau » toan cau, phan cau, than cap
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 tieu sach - thanh tung tham trong cong tac ((than cau) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - thanh tung tham trong cong tac ((than cau) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - thanh tung tham trong cong tac ((than cau) or (toan cao))*.