Perhaps you should try some spelling variations:
tieu sang » chieu sang, tieu dung, tiem nang
hanh mang » nhanh mang, hanh trang, nhanh lang
dung cong » dung trong
hach toan » thanh toan, manh toan
tam toan » tap toan, tam than, pham toan
mang va » mang vua, hang va, bang 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 tieu sang - hanh mang va dung cong ((tam toan) or (hach toan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sang - hanh mang va dung cong ((tam toan) OR (hach toan)) ban.
• Adding a wildcard symbol may retrieve word variants: theo tieu sang - hanh mang va dung cong ((tam toan) or (hach toan)) ban*.