Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
tieu xanh » tieu danh, chieu xanh, dieu hanh
hanh mang » nhanh mang, hanh trang, nhanh lang
mang cua » manh cua, dung cua, ban cua
cua dung » cua dang, cua dong, qua dung
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
toan cau » toan cao, toan ban, toan 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 - hanh mang cua dung ((((cong dan) or (cong san))) or (cong thanh)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - hanh mang cua dung ((((cong dan) OR (cong san))) OR (cong thanh)) toan cau.
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - hanh mang cua dung ((((cong dan) or (cong san))) or (cong thanh)) toan cau*.