Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
dong cong » duong cong, dung cong, dang cong
anh tang » anh bang, anh dang, anh nang
tang van » dang van, hoang van, trong van
cong san » cong tac
toan cao » toan ban
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu xanh) or (chieu sang)) - anh tang van dong cong san ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chieu sang)) - anh tang van dong cong san ((toan cao) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (chieu sang)) - anh tang van dong cong san ((toan cao) or (toan tap))*.