Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
chieu sang » chieu sach, chieu xanh, nhieu tang
hieu lang » hieu quang, nhieu tang, hieu van
mang doan » hang doanh, quang doan, trang doan
cong tinh » cong trinh, cong vinh, long tinh
anh mang » hanh mang, anh bang, anh dang
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sang) OR (hieu lang)) - anh mang doan phuong cong tinh toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) OR (hieu lang)) - anh mang doan phuong cong tinh toan cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) OR (hieu lang)) - anh mang doan phuong cong tinh toan cau*.