Perhaps you should try some spelling variations:
chieu xanh » chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, hieu cach
chieu sang » hieu lang, nhieu tang
thanh tung » thanh cong
dung cong » dung trong
cong bang » cuong bang, dong bang, hong bang
bang khan » bang nhan, bang thanh, dang khanh
tung tac » tuong tac, ung tac, trung tam
tac dung » sach dung, xay dung, tin dung
khan cap » khan ap, than cap, khoan cam

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 sach))) or (chieu sang)) - thanh tung tac dung cong bang khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((((chieu xanh) OR (chieu sach))) OR (chieu sang)) - thanh tung tac dung cong bang khan cap.
• Adding a wildcard symbol may retrieve word variants: theo ((((chieu xanh) or (chieu sach))) or (chieu sang)) - thanh tung tac dung cong bang khan cap*.