Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, kieu tinh
nhung cong » thong cong, hang cong, nhung don
chau tinh » cuu tinh, ha tinh, cua tinh
chinh cua » chinh ca, chinh sua, hinh cua
dung cong » dung trong
dan than » dan chan, ban than, van than
than tap » toan tap, han tap, phan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu tinh) or (chau tinh)) - hanh chinh cua ((nhung cong) OR (dung cong)) dan than tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu tinh) OR (chau tinh)) - hanh chinh cua ((nhung cong) OR (dung cong)) dan than tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu tinh) or (chau tinh)) - hanh chinh cua ((nhung cong) OR (dung cong)) dan than tap".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu tinh) or (chau tinh)) - hanh chinh cua ((nhung cong) OR (dung cong)) dan than tap*.