Perhaps you should try some spelling variations:
"bo sach va thuc hung dung trong marketing" » "bo sach va thuc hung dung tri marketing", "bo sach va thuc hung dung tvqg marketing", "bo sach va thuc chung dung trong marketing", "bo sach va thuc nhung dung trong marketing", "bo sach va thuc dung dung trong marketing", "bo sach va thuc phung dung trong marketing", "bo sach va thuc ung dung trong marketing", "co sach va thuc hung dung trong marketing", "hoc sach va thuc hung dung trong marketing", "bo sach xa thuc hung dung trong marketing", "bo sach ha thuc hung dung trong marketing", "bo sach dao thuc hung dung trong marketing"
"bo sach mau thuat dung dung trong marketing" » "bo sach mau thuat dung dung tri marketing", "bo sach mau thuat dung dung tvqg marketing", "bo sach mau thuat hung dung trong marketing", "bo sach mau thuat ung dung trong marketing", "bo sach mau thuat xung dung trong marketing", "bo sach ma thuat dung dung trong marketing", "bo sach mau thuan dung dung trong marketing", "bo sach phau thuat dung dung trong marketing", "bo sach mau thuat dung ung trong marketing", "bo sach mau thuat dung dong trong marketing", "bo sach dau thuat dung dung trong marketing", "bo sach dao thuat dung dung trong marketing", "bo bach mai thuat dung dung trong marketing", "co sach mau thuat dung dung trong marketing", "hoc sach mau thuat dung dung trong 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: (("bo sach va thuc hung dung trong marketing") OR ("bo sach mau thuat dung dung trong marketing"))~.
• Removing quotes may allow a broader search: (( bo sach va thuc hung dung trong marketing ) or ( bo sach mau thuat dung dung trong marketing ))~.
• Adding a wildcard symbol may retrieve word variants: (("bo sach va thuc hung dung trong marketing") or ("bo sach mau thuat dung dung trong marketing"))*.