Perhaps you should try some spelling variations:
quan nhung » qua nhung, cua nhung, luan chung
tieu xanh » tieu danh, chieu xanh, dieu hanh
hanh ban » thanh ban, hang ban, hanh san
ban quan » van quan
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
phan dau » phan tu, hang dau

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - hanh ban quan nhung ((cong dan) OR (cong san)) ((phan lap) OR (phan dau))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - hanh ban quan nhung ((cong dan) OR (cong san)) ((phan lap) or (phan dau))~".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - hanh ban quan nhung ((cong dan) OR (cong san)) ((phan lap) or (phan dau))*.