Perhaps you should try some spelling variations:
canh manh » lanh manh, canh tranh, cach mang
dung cong » dung trong
theo chu » theo chieu, cho chu, chao chu
chu sang » chu bang, thu sang, chieu sang
manh cua » doanh cua, ban cua
cua dung » cua dang, cua dong, qua dung
cong tan » cong tac, cong san, cong thanh
than cau » toan cau, phan cau, than cap
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: theo chu sang - canh manh cua dung cong tan ((than cau) OR (khan ap))~.
• Adding a wildcard symbol may retrieve word variants: theo chu sang - canh manh cua dung cong tan ((than cau) or (khan ap))*.