Perhaps you should try some spelling variations:
lieu tinh » trieu tinh, diep tinh, bien tinh
chinh cua » chinh ca, chinh sua, hinh cua
cua nhung » va nhung
cong tan » cong thanh, cong ty, cong ha
cong tac » cong ty
toan cao » toan ban, toan tap
ho lieu » so lieu, co lieu, ho kieu

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

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