Perhaps you should try some spelling variations:
trong hach » trong mach, trong cach, trong hanh
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh tang » hanh trang, anh tang, hanh mang
hach toan » thanh toan, manh toan
toan tap » toan ban
tang va » trang va, tang van, thang va
va dung » van dung, va duong, vat dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((dieu hanh) or (chieu xanh)) - hanh tang va dung trong hach toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((dieu hanh) OR (chieu xanh)) - hanh tang va dung trong hach toan tap.
• Adding a wildcard symbol may retrieve word variants: theo ((dieu hanh) or (chieu xanh)) - hanh tang va dung trong hach toan tap*.