Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
chieu xanh » chieu sach, chieu sang, chieu tinh
cua thuong » cua truong, cua phuong, ca thuong
doi chieu » doc hieu, doi chi, ho chieu
hanh tang » hanh trang, anh tang, hanh mang
tang cua » mang cua, hang cua, tang luan
cong tan » cong tac, cong san, cong thanh
toan tai » toan tap, doanh tai, von tai
toan ban » van ban
toan cao » 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: doi chieu xanh - hanh tang cua thuong cong tan ((((toan tai) or (toan ban))) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - hanh tang cua thuong cong tan ((((toan tai) OR (toan ban))) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - hanh tang cua thuong cong tan ((((toan tai) or (toan ban))) or (toan cao))*.