Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
chiet tach » chieu sach
canh doanh » hanh doanh, chinh doanh, doanh doanh
cong hoang » cong hoan, thong hoang, vuong hoang
cua nhung » va nhung
hoang van » hang va
cua hang » cua dang, cua cong, cua ban

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (chiet tach)) - canh doanh ((cua hang) OR (cua nhung)) cong hoang van ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) or (chiet tach)) - canh doanh ((cua hang) OR (cua nhung)) cong hoang van ban~".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (chiet tach)) - canh doanh ((cua hang) OR (cua nhung)) cong hoang van ban*.