Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, dieu hanh
hanh tang » hanh trang, anh tang, hanh mang
cua thong » cua thuong, cua khong, cua tong
tang cua » mang cua, hang cua, tang luan
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.

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