Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chieu sang » chieu sach, chieu xanh, hieu lang
doi chieu » doc hieu, doi chi, ho chieu
lanh manh » lanh tranh, lan anh, van manh
cua nhung » va nhung
manh toan » thanh toan, anh tuan, tinh toan
manh cua » doanh cua, ban cua
dan toan » van toan, dan than, xuan toan

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 - lanh manh cua nhung cong ((dan toan) or (manh toan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - lanh manh cua nhung cong ((dan toan) OR (manh toan)) cao.
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - lanh manh cua nhung cong ((dan toan) or (manh toan)) cao*.