Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, dieu hanh
phan dau » phan tu, hang dau
cua dung » cua dang, cua dong, qua dung
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
than tap » toan tap, han tap, phan tap
dau cua » dai cua, day cua, cau cua

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

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