Perhaps you should try some spelling variations:
nang luong » nang song
chieu sang » chieu sach, chieu xanh, nhieu tang
trinh toan » tinh toan, thanh toan, trinh han
hieu lang » hieu quang, nhieu tang, hieu van
luong cua » huong cua, long cua, luong quan
hang cong » dang cong, hang nong, bang cong
cua hang » cua dang, cua nhung, cua cong
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 ((hieu lang) OR (chieu sang)) - nang luong cua hang cong trinh toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu lang) OR (chieu sang)) - nang luong cua hang cong trinh toan cau".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) OR (chieu sang)) - nang luong cua hang cong trinh toan cau*.