Perhaps you should try some spelling variations:
thiet tach » chiet tach, thien hach, thuat tach
quan nhung » qua nhung, luan chung, quang hung
cua nhung » va nhung
ho thiet » hoc thiet, hoa thiet, so thiet
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho thiet tach - hanh chinh ((quan nhung) or (cua nhung)) cong san toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho thiet tach - hanh chinh ((quan nhung) OR (cua nhung)) cong san toan ban.
• Adding a wildcard symbol may retrieve word variants: ho thiet tach - hanh chinh ((quan nhung) or (cua nhung)) cong san toan ban*.