Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
tieu xanh » tieu danh, chieu xanh, dieu hanh
trang cua » tranh cua, tang cua, trung cua
cua duong » cua dong, cua huong, qua duong
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
toan tai » toan tap, doanh tai, toan cao
toan ban » van ban

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 trang cua duong ((cong tan) OR (cong san)) ((toan tai) OR (toan ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - hanh trang cua duong ((cong tan) OR (cong san)) ((toan tai) or (toan ban))~".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - hanh trang cua duong ((cong tan) OR (cong san)) ((toan tai) or (toan ban))*.