Perhaps you should try some spelling variations:
thinh sach » chinh sach, tinh sach, sinh sach
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
hang cong » dang cong, hang nong, thanh cong
bang cong » dang cong, bang song, dung cong
tac toan » tap toan, tam toan, hach toan
toan ban » van ban
tien » tieng, bien, vien

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

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