Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, truong thanh
lieu tinh » trieu tinh, diep tinh, bien tinh
chinh cua » chinh ca, chinh sua, hinh cua
cua nhung » va nhung
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, 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 dan) or (((cong tan) OR (cong thanh)))) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho lieu tinh - hanh chinh cua nhung ((cong dan) OR (((cong tan) OR (cong thanh)))) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho lieu tinh - hanh chinh cua nhung ((cong dan) or (((cong tan) OR (cong thanh)))) toan cao".
• Adding a wildcard symbol may retrieve word variants: ho lieu tinh - hanh chinh cua nhung ((cong dan) or (((cong tan) OR (cong thanh)))) toan cao*.