Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, nhieu tang
cua phuong » cuu phuong, cuc phuong, luan phuong
hieu lang » hieu quang, nhieu tang, hieu van
cua thong » cua thuong, cua khong, cua tong
cong san » cong tac
san phan » san pham, van phan, sat phan
phan dau » phan tu, hang dau

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)) - thanh cong ((cua thong) or (cua phuong)) cong san phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (hieu lang)) - thanh cong ((cua thong) OR (cua phuong)) cong san phan dau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) OR (hieu lang)) - thanh cong ((cua thong) or (cua phuong)) cong san phan dau*".