Perhaps you should try some spelling variations:
"bo sach y thuat ung dung trong marketing" » "bo sach y thuat ung dung tri marketing", "bo sach y thuat ung dung tvqg marketing", "bo sach y thuat dung dung trong marketing", "bo sach y thuat hung dung trong marketing", "bo sach y thuat xung dung trong marketing", "hoc sach y thuat ung dung trong marketing", "bo sach ky thuat ung dung trong marketing", "bo sach my thuat ung dung trong marketing", "bo sach kxy thuat ung dung trong marketing"
"co sach va thuc cuong dung tai marketing" » "co sach va thuc cuong dung tri marketing", "co sach va thuc cuong dung tac marketing", "co sach va thuc cuong dung thi marketing", "co sach va thu cuong dung tai marketing", "co sach va thuc cung dung tai marketing", "co sach va thuc uong dung tai marketing", "co sach va thuc tuong duong tai marketing", "co sach va thuc thong dung tai marketing", "cuon sach va thuc cuong dung tai marketing", "hoc sach va thuc cuong dung tai marketing", "co sach xa thuc cuong dung tai marketing", "co sach ha thuc cuong dung tai marketing", "co sach dao thuc cuong dung tai marketing"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("co sach va thuc cuong dung tai marketing") or ("bo sach y thuat ung dung trong marketing"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("co sach va thuc cuong dung tai marketing") OR ("bo sach y thuat ung dung trong marketing"))*.
• Removing quotes may allow a broader search: (( co sach va thuc cuong dung tai marketing ) or ( bo sach y thuat ung dung trong marketing ))*.