Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
thanh dung » thanh duong, thanh tung, thanh hung
cong thanh » dong thanh, cong trinh, truong thanh
doi chieu » doc hieu, doi chi, ho chieu
cam hoang » cap hoang, cau hoang, pham hoang
dung cam » dung lam, dung cac, dung nam
cong tan » cong tac, cong san, cong ty
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: doi chieu sang - thanh dung cam hoang ((cong tan) or (cong thanh)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - thanh dung cam hoang ((cong tan) OR (cong thanh)) toan ban.
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - thanh dung cam hoang ((cong tan) or (cong thanh)) toan ban*.