Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
chieu xanh » chieu sach, chieu sang, chieu tinh
tieu xanh » tieu danh, dieu hanh, tien anh
lang cong » dang cong, bang cong, hang cong
tai lang » tai cong, thi lan, tai san
cong dan » cong san, cong tan, huong dan
nhan tai » hang tai, van tai, toan tai
chan ta » chan tha, nhan tao, 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 ((tieu xanh) or (chieu xanh)) - doanh doanh tai lang cong dan ((chan ta) OR (nhan tai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu xanh) OR (chieu xanh)) - doanh doanh tai lang cong dan ((chan ta) OR (nhan tai)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((tieu xanh) or (chieu xanh)) - doanh doanh tai lang cong dan ((chan ta) OR (nhan tai))".
• Adding a wildcard symbol may retrieve word variants: theo ((tieu xanh) or (chieu xanh)) - doanh doanh tai lang cong dan ((chan ta) OR (nhan tai))*.