Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
hanh tranh » canh tranh, hanh trinh, hanh trang
chieu xanh » chieu sach, chieu sang, chieu tinh
cac thuong » cac truong, cac phuong, cac chuong
thieu anh » thien anh, thien danh, thieu nhi
tranh cac » trinh cac, thanh cac, tranh cai
cong vang » cong lang, cong quang, cong ngang
tan cau » toan cau, van cau, tao cau
tan ca » tan cua, tang ca, dan ca

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu anh) or (chieu xanh)) - hanh tranh cac thuong cong vang ((tan cau) OR (tan ca))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu anh) OR (chieu xanh)) - hanh tranh cac thuong cong vang ((tan cau) OR (tan ca))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu anh) or (chieu xanh)) - hanh tranh cac thuong cong vang ((tan cau) OR (tan ca))*".