Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
cong thanh » dong thanh, cong trinh, cong tan
hien xanh » hien hanh, hien nhanh, chieu xanh
trang va » tran van, hang va
va thong » va thuong, va phuong, he thong
cong san » cong tac
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien xanh - hanh trang va thong ((cong thanh) or (cong san)) ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - hanh trang va thong ((cong thanh) OR (cong san)) ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh trang va thong ((cong thanh) or (cong san)) ((toan cau) or (toan ban))*.