Perhaps you should try some spelling variations:
chiet tach » chieu sach
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
hang cong » dang cong, hang nong, thanh cong
bang cong » dang cong, bang song, dung cong
so chiet » so thiet, soc thiet, so viet
tinh cua » trinh cua, sinh cua, tinh chat
van tan » van tuan, van ban, van tai
tan tap » toan tap, han tap, tan tat

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

• Performing a fuzzy search may retrieve terms with similar spellings: so chiet tach - hanh tinh cua ((hang cong) or (bang cong)) van tan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so chiet tach - hanh tinh cua ((hang cong) OR (bang cong)) van tan tap*.