Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
ca thuong » cao thuong, cua thuong, va thuong
tranh ca » tranh cua, tranh cac, tranh cai
cong tan » cong tac, cong san, cong thanh
tan quan » tang quan, toan quan, van quan
quan cao » quang cao, quan cau, quan ao

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) or (chieu sang)) - canh tranh ca thuong cong tan quan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu xanh) OR (chieu sang)) - canh tranh ca thuong cong tan quan cao*.