Perhaps you should try some spelling variations:
thanh truong » thanh trung, thanh thuong, thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
truong cua » truong ca, truong quan, truong cao
cong tang » cong thang, cong lang, cong vang
cua dung » cua dang, cua dong, qua dung
cong tan » cong tac, cong san, cong thanh
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 qua)) - thanh truong cua dung ((cong tan) or (cong tang)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (hieu qua)) - thanh truong cua dung ((cong tan) OR (cong tang)) toan ban.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (hieu qua)) - thanh truong cua dung ((cong tan) or (cong tang)) toan ban*.