Perhaps you should try some spelling variations:
canh doanh » hanh doanh, chinh doanh, doanh doanh
nhung song » nhung cong, nhung bong, nhung chong
tinh sach » tinh cach, tinh mach, tinh xach
sinh sach » chinh sach, sinh san, sang sach
doanh cua » doanh luan
cua nhung » va nhung
song van » hoang van, trong van, duong van
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((tinh sach) or (sinh sach)) - canh doanh cua nhung song van ((toan cao) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((tinh sach) OR (sinh sach)) - canh doanh cua nhung song van ((toan cao) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: hoc ((tinh sach) or (sinh sach)) - canh doanh cua nhung song van ((toan cao) or (van ban))*.