Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
khoi thong » khoi khong, hoi thong, khoi truong
thong cong » trong cong, tong cong, thong thong
dung khoi » dung khoa, dang khoi, hung khoi
ban thanh » ban hanh, ban hang
thanh tap » thanh lap, thanh tai, thanh tay
anh dung » anh dong, anh huong, sach dung
cong ban » cong bang, cong san, cong tan

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)) - anh dung khoi thong cong ban thanh tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu sang)) - anh dung khoi thong cong ban thanh tap*.