Perhaps you should try some spelling variations:
cong thuong » hang thuong
nang luong » nang song
chieu sang » chieu sach, chieu xanh, hieu lang
tranh cua » doanh cua, manh cua
ho chieu » theo chieu, hoc thieu, doi chieu
cua dang » cua cong, cua ban
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 - canh tranh cua dang ((nang luong) or (cong thuong)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - canh tranh cua dang ((nang luong) OR (cong thuong)) toan cao.
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - canh tranh cua dang ((nang luong) or (cong thuong)) toan cao*.