Perhaps you should try some spelling variations:
doanh chung » doanh nhung, doanh thuong, doan hung
chieu sang » chieu sach, chieu xanh, nhieu tang
dung doanh » dung dan, dung dong
chung cong » nhung cong, chong cong, phung cong
hieu lang » hieu quang, nhieu tang, hieu van
manh dung » manh hung, manh tung, anh dung
cong tinh » cong trinh, cong vinh, long tinh
toan ban » van ban

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)) - manh dung doanh chung cong tinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (hieu lang)) - manh dung doanh chung cong tinh toan ban.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (hieu lang)) - manh dung doanh chung cong tinh toan ban*.