Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
canh manh » lanh manh, canh tranh, cach mang
cua dung » cua dang, cua dong, cua rung
qua dung » quang dung, su dung, qua song
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan tap » toan ban

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 (dieu hanh)) - canh manh ((cua dung) or (qua dung)) cong san toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (dieu hanh)) - canh manh ((cua dung) OR (qua dung)) cong san toan tap.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) or (dieu hanh)) - canh manh ((cua dung) or (qua dung)) cong san toan tap*.