Perhaps you should try some spelling variations:
chao chieu » cao hieu, chao chu, ho chieu
chieu sang » chieu sach, chieu xanh, hieu lang
canh manh » lanh manh, canh tranh, cach mang
dung cong » dung trong
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: chao chieu sang - canh manh cua dung cong tan ((than cau) OR (khan ap))~.
• Adding a wildcard symbol may retrieve word variants: chao chieu sang - canh manh cua dung cong tan ((than cau) or (khan ap))*.