Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
chiet tach » chieu sach
nhung cong » dung cong, thong cong, hang cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
tranh cua » doanh cua, manh cua
cua nhung » va nhung
van toan » van tuan, van tan, van thanh
van quan » 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: doi ((hieu manh) or (chiet tach)) - hanh tranh cua nhung cong ((van toan) or (van quan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((hieu manh) OR (chiet tach)) - hanh tranh cua nhung cong ((van toan) OR (van quan)) cau.
• Adding a wildcard symbol may retrieve word variants: doi ((hieu manh) or (chiet tach)) - hanh tranh cua nhung cong ((van toan) or (van quan)) cau*.