Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
hanh dung » thanh dung, hanh dong, manh dung
theo cong » theo dong, theo vong, thep cong
cong cong » cong dong, trong cong, dung cong
anh dung » anh dong, anh huong, sach dung
cong tac » cong ty
tac van » tac vang, cac van, tac va

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)) - ((hanh dung) or (anh dung)) theo cong cong tac van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu sang)) - ((hanh dung) OR (anh dung)) theo cong cong tac van ban.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (chieu sang)) - ((hanh dung) or (anh dung)) theo cong cong tac van ban*.