Perhaps you should try some spelling variations:
"bo sach y thuat ung dung tri marketing" » "bo sach y thuat ung dung trong marketing", "bo sach y thuat ung dung tvqg marketing", "bo sach y thuat ung dung _ marketing", "bo sach y thuat dung dung tri marketing", "bo sach y thuat xung dung tri marketing", "bo sach y thuat song dung tri marketing", "bo sach y thuat ung dung tren marketing", "bo sach y thuat ung dung sai marketing", "bo sach y thuat ung dung doi marketing", "co sach y thuat ung dung tri marketing", "bo sach ky thuat ung dung tri marketing", "bo sach my thuat ung dung tri marketing", "bo sach kxy thuat ung dung tri marketing"
"hoc sach xa thuat hung dung tai marketing" » "hoc sach xa thuat hung dung tac marketing", "hoc sach xa thuat hung dung thi marketing", "hoc sach xa thuat hung dung thay marketing", "hoc sach xa thuat dung dung tai marketing", "hoc sach xa thuat xung dung tai marketing", "hoc sach xa thuat chuong dung tai marketing", "hoc sach xa thuat nhung dung tai marketing", "hoc sach xa thuat phung dung tai marketing", "hoc sinh xa thuat hung dung tai marketing", "hoc cac xa thuat hung dung tai marketing", "hoc anh xa thuat hung dung tai marketing", "hoc sach va thuat hung dung tai marketing", "hoc sach ma thuat hung dung tai marketing", "hoc sach cac thuat hung dung tai marketing", "hoc sach dao thuat hung dung tai marketing", "hoc sach nha thuat hung dung tai marketing", "hoc sach bai thuat hung dung tai marketing"

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 sach xa thuat hung dung tai marketing") OR ("bo sach y thuat ung dung tri marketing"))~.
• Removing quotes may allow a broader search: (( hoc sach xa thuat hung dung tai marketing ) or ( bo sach y thuat ung dung tri marketing ))~.
• Adding a wildcard symbol may retrieve word variants: (("hoc sach xa thuat hung dung tai marketing") or ("bo sach y thuat ung dung tri marketing"))*.