Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
cong bang » cuong bang, dong bang, hong bang
bang than » bang thanh, ban than, sang than
tam dung » tam duong, tan dung, am dung
tac dung » sach dung, xay dung, tin dung
than cap » khan cap, thanh lap, thanh cac

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 xanh) or (chieu sang)) - thanh cong ((tam dung) OR (tac dung)) cong bang than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu sang)) - thanh cong ((tam dung) OR (tac dung)) cong bang than cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) or (chieu sang)) - thanh cong ((tam dung) OR (tac dung)) cong bang than cap".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (chieu sang)) - thanh cong ((tam dung) OR (tac dung)) cong bang than cap*.