Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
chieu sang » chieu sach, chieu xanh, hieu lang
doi chieu » doc hieu, doi chi, ho chieu
mang luan » tang luan, bang luan, mong luan
hang luan » tang luan, dung luan
cong dan » cong san, cong tan, huong dan
than cau » toan cau, phan cau, thanh chau
than cap » khan cap, thanh lap, thanh cac

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sang - anh ((mang luan) or (hang luan)) phuong cong dan ((than cau) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - anh ((mang luan) OR (hang luan)) phuong cong dan ((than cau) OR (than cap)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - anh ((mang luan) or (hang luan)) phuong cong dan ((than cau) or (than cap))*.