Perhaps you should try some spelling variations:
"hoc sach ky thuat ung dung trong marketing" » "hoc sach ky thuat ung dung tvqg marketing", "hoc sach ky thuat dung dung trong marketing", "hoc sach ky thuat xung dung trong marketing", "hoc sach ky thuat song dung trong marketing", "hoc sinh ky thuat ung dung trong marketing", "hoc cac ky thuat ung dung trong marketing", "hoc anh ky thuat ung dung trong marketing", "hoc sac ky thuat ung dung trong marketing", "hoc sach y thuat ung dung trong marketing", "hoc sach ty thuat ung dung trong marketing"
"bo sach va thuat hung dung tri marketing" » "bo sach va thuat hung dung tvqg marketing", "bo sach va thuat hung dung _ marketing", "bo sach va thuat hung dung cuu marketing", "bo sach va thuat dung dung tri marketing", "bo sach va thuat xung dung tri marketing", "bo sach va thuat chuong dung tri marketing", "bo sach va thuat nhung dung tri marketing", "bo sach va thuat phung dung tri marketing", "bo sach ki thuat hung dung tri marketing", "bo sach va thuc hung dung tri marketing", "bo sach va thiet hung dung tri marketing", "bo sach va thuat hung dung tai marketing", "bo sach va thuat hung dung tren marketing", "bo sach va thuat hung dung sai marketing", "co sach va thuat hung dung tri marketing", "bo sach xa thuat hung dung tri marketing", "bo sach ha thuat hung dung tri marketing", "bo sach dao thuat hung dung tri 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 ky thuat ung dung trong marketing") OR ("bo sach va thuat hung dung tri marketing"))~.
• Removing quotes may allow a broader search: (( hoc sach ky thuat ung dung trong marketing ) or ( bo sach va thuat hung dung tri marketing ))~.
• Adding a wildcard symbol may retrieve word variants: (("hoc sach ky thuat ung dung trong marketing") or ("bo sach va thuat hung dung tri marketing"))*.