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 song 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 thuat xung dung tai marketing" » "co sach va thuat xung dung tri marketing", "co sach va thuat xung dung tac marketing", "co sach va thuat xung dung thi marketing", "co sach va thuat dung dung tai marketing", "co sach va thuat hung dung tai marketing", "co sach va thuat song dung tai marketing", "co sach va thuat cung dung tai marketing", "co sach va thuat cuong dung tai marketing", "co sach ky thuat xung dung tai marketing", "co sach ki thuat xung dung tai marketing", "co sach va thuc xung dung tai marketing", "cuon sach va thuat xung dung tai marketing", "hoc sach va thuat xung dung tai marketing", "co sach xa thuat xung dung tai marketing", "co sach ha thuat xung dung tai marketing", "co sach dao thuat xung 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 thuat xung 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 thuat xung dung tai marketing") OR ("bo sach y thuat ung dung trong marketing"))*.
• Removing quotes may allow a broader search: (( co sach va thuat xung dung tai marketing ) or ( bo sach y thuat ung dung trong marketing ))*.