Perhaps you should try some spelling variations:
lieu tinh » diep tinh, bien tinh
chinh cua » chinh ca, chinh sua, hinh cua
cong cong » cong dong, trong cong, dung cong
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan ban » van ban
ha tinh » va tinh, may tinh

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

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