Perhaps you should try some spelling variations:
khai thuong » khac thuong, hai thuong, khai chuong
thuong cong » thong cong, thuong con, thuong dong
tranh khai » trinh khai, tranh thai, tranh chap
hieu lang » chieu sang, hieu quang, nhieu tang
tan toan » tan tran, tap toan, dan toan
van toan » van tuan, van tan, van thanh
ho hieu » ho chieu, hoi hieu, nho hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - canh tranh khai thuong cong ((tan toan) OR (van toan)) ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho hieu lang - canh tranh khai thuong cong ((tan toan) OR (van toan)) ban*".