Perhaps you should try some spelling variations:
chiet tach » chieu sach
hanh doanh » hang doanh, chinh doanh, doanh doanh
hoc chiet » hoc thiet, hoc nhiet, hoc hien
doanh cua » doanh luan
cua nhung » va nhung
hoang van » hang va
trong van » trong cac
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chiet tach - hanh doanh cua nhung ((hoang van) or (trong van)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chiet tach - hanh doanh cua nhung ((hoang van) OR (trong van)) toan ban*.