Perhaps you should try some spelling variations:
canh manh » lanh manh, canh tranh, cach mang
hang cong » dang cong, hang nong, thanh cong
bang cong » dang cong, bang song, dung cong
theo thu » theo chu, theo tu, theo tieu
thu bang » thu ban, thu hang, chu bang
manh cua » doanh cua, ban cua
van toan » van tuan, van tan, van thanh
toan tap » toan ban

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: theo thu bang - canh manh cua ((hang cong) OR (bang cong)) van toan tap~.
• Adding a wildcard symbol may retrieve word variants: theo thu bang - canh manh cua ((hang cong) or (bang cong)) van toan tap*.