Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
manh hung » anh huong
dang cong » dung cong
tac thanh » bac thanh, cac thanh, tcc thanh
thanh cac » hanh cac, thanh bac, thanh ca
hung chu » nhung chu, hung thu, chung chou
chu dang » chu bang, chu dong, thu dang
cong tac » cong ty

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((dieu hanh) or (chieu xanh)) - manh hung chu dang cong tac thanh cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((dieu hanh) OR (chieu xanh)) - manh hung chu dang cong tac thanh cac.
• Adding a wildcard symbol may retrieve word variants: doc ((dieu hanh) or (chieu xanh)) - manh hung chu dang cong tac thanh cac*.