Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
chiet tach » chieu sach
hanh tranh » canh tranh, hanh trinh, hanh trang
cac thuong » cac truong, cac phuong, cac chuong
tranh cac » trinh cac, thanh cac, tranh cai
ho chiet » ho chieu, ho thiet, hoc thiet
cong san » cong tac
toan cao » toan tap
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: ho chiet tach - hanh tranh cac thuong cong san ((toan cao) OR (toan ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chiet tach - hanh tranh cac thuong cong san ((toan cao) OR (toan ban))*".