Perhaps you should try some spelling variations:
chinh doanh » kinh doanh
chieu sang » chieu sach, chieu xanh, hieu lang
hoc chieu » hoc thieu, ho chieu, hoc hien
luan dong » luan cong, luan nong, luan luong
quan dong » quang dong, quan long, quan hoang
cong dan » cong san, cong tan, huong dan
dan van » dang van, doan van, dao van

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu sang - chinh doanh ((luan dong) or (quan dong)) cong dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sang - chinh doanh ((luan dong) OR (quan dong)) cong dan van ban.
• Adding a wildcard symbol may retrieve word variants: hoc chieu sang - chinh doanh ((luan dong) or (quan dong)) cong dan van ban*.