Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, dieu hanh
hanh mang » nhanh mang, hanh trang, nhanh lang
va thong » va thuong, va phuong, he thong
cong san » cong tac
toan cau » toan cao, toan tap, toan tai
toan ban » van ban
mang va » mang vua, hang va, bang va

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 - hanh mang va thong ((huong dan) or (cong san)) ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - hanh mang va thong ((huong dan) OR (cong san)) ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - hanh mang va thong ((huong dan) or (cong san)) ((toan cau) or (toan ban))*.