Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hieu manh » hieu nganh, dieu hanh, hien hanh
dung cong » dung trong
chinh ca » chinh ta, chinh va, chinh tai
dan toan » van toan, dan than, manh toan
ban than » ban thanh, van thanh, ban hang
ca dung » cao dung, cap dung, cu dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu manh) or (chieu xanh)) - hanh chinh ca dung cong ((dan toan) or (ban than)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (chieu xanh)) - hanh chinh ca dung cong ((dan toan) OR (ban than)) ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (chieu xanh)) - hanh chinh ca dung cong ((dan toan) or (ban than)) ban*.