Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
chieu sang » chieu sach, chieu xanh, hieu lang
thanh dung » thanh duong, thanh tung, thanh hung
doi chieu » doc hieu, doi chi, ho chieu
va phuong » va thuong, cac phuong
khang cao » khang chan, quang cao, hang ca
cong san » cong tac

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 - thanh dung va phuong cong san ((khang cao) or (nang cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - thanh dung va phuong cong san ((khang cao) OR (nang cao)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - thanh dung va phuong cong san ((khang cao) or (nang cao))*.