Perhaps you should try some spelling variations:
tranh cua » doanh cua, manh cua
dung cong » dung trong
doan phan » doanh phan, toan phan, doanh nhan
ho chiet » ho chieu, hoc thiet, hoa thiet
ho thiet » hoc thiet, hoa thiet, so thiet
cua dung » cua dang, cua dong, qua dung
dan phan » dan chan, van phan, dam phan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chiet) OR (ho thiet)) tach - canh tranh cua dung cong ((doan phan) OR (dan phan)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chiet) OR (ho thiet)) tach - canh tranh cua dung cong ((doan phan) or (dan phan)) cau~".
• Adding a wildcard symbol may retrieve word variants: ((ho chiet) OR (ho thiet)) tach - canh tranh cua dung cong ((doan phan) or (dan phan)) cau*.