Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
tang luan » dung luan
than cua » nhan cua, thai cua, ban cua
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan tap » toan ban

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 ((than cua) or (tang luan)) thuong cong dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - hanh ((than cua) OR (tang luan)) thuong cong dan toan tap.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - hanh ((than cua) or (tang luan)) thuong cong dan toan tap*.