Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
chieu tinh » trieu tinh, lieu tinh, chau tinh
dang cong » dung cong
cong danh » cuong danh, cong dan, cong thanh
danh van » doanh van, dang van, dinh van
cong yu » cong cu, cong tu, cong su
yu dang » su dang, vu dang, xu dang

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu sang) or (chieu tinh)) - thanh cong yu dang cong danh van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sang) OR (chieu tinh)) - thanh cong yu dang cong danh van ban.
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sang) or (chieu tinh)) - thanh cong yu dang cong danh van ban*.