Perhaps you should try some spelling variations:
dung cong » dung trong
chinh xa » chinh xac, chinh xay, chinh ta
dan than » dan chan, ban than, dan toan
van than » van thanh, van thang, van tuan
van toan » van tuan, van tan, van thanh
xa dung » xay dung, xa dong, va dung
trieu » thieu, trien, tieu

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

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