Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
manh toan » thanh toan, anh tuan, tinh toan
hanh ban » thanh ban, hang ban, hanh san
san toan » van toan, dan toan, xuan toan
ban cua » ban quan
chuc » thuc, chu, chua

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sang) or (chuc nang)) - hanh ban cua nhung cong ((san toan) OR (manh toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (chuc nang)) - hanh ban cua nhung cong ((san toan) OR (manh toan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sang) or (chuc nang)) - hanh ban cua nhung cong ((san toan) OR (manh toan)) cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) or (chuc nang)) - hanh ban cua nhung cong ((san toan) OR (manh toan)) cau*.