Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
thong dung » thong cong, thong thuong
toc chieu » toc thieu, doc hieu, hoc thieu
cong quan » cuong quan, cong quang, tong quan
dung lap » dung lam, dung lai, dung lao
lap doan » lap doanh, tap doan, lap dan
doan ban » doanh ban, toan ban, doan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc chieu sang - thanh ((cong quan) or (thong quan)) thong dung lap doan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc chieu sang - thanh ((cong quan) OR (thong quan)) thong dung lap doan ban.
• Adding a wildcard symbol may retrieve word variants: toc chieu sang - thanh ((cong quan) or (thong quan)) thong dung lap doan ban*.