Perhaps you should try some spelling variations:
canh manh » canh tranh, cach mang, van manh
lanh manh » lanh tranh, lan anh, van manh
trong tac » trong cac, tuong tac, trong tan
chu sang » chu bang, thu sang, chieu sang
cua dung » cua dang, cua dong, qua dung
than cau » toan cau, phan cau, than cap
cho chu » cho thue
khan ap » khan cap, han ap, khan dam

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: cho chu sang - ((canh manh) OR (lanh manh)) cua dung trong tac ((than cau) OR (khan ap))~.
• Adding a wildcard symbol may retrieve word variants: cho chu sang - ((canh manh) or (lanh manh)) cua dung trong tac ((than cau) or (khan ap))*.