Perhaps you should try some spelling variations:
"bo sach ky thuat ung dung trong marketing" » "bo sach ky thuat ung dung tri marketing", "bo sach ky thuat ung dung tvqg marketing", "bo sach ky thuat dung dung trong marketing", "bo sach ky thuat hung dung trong marketing", "bo sach ky thuat xung dung trong marketing", "co sach ky thuat ung dung trong marketing", "hoc sach ky thuat ung dung trong marketing", "bo sac ky thuat ung dung trong marketing", "bo sach y thuat ung dung trong marketing", "bo sach ty thuat ung dung trong marketing"
"bo sach va thuat ung dung dat marketing" » "bo sach va thuat ung dung tac marketing", "bo sach va thuat ung dung van marketing", "bo sach va thuat ung dung thuat marketing", "bo sach va thuat dung dung dat marketing", "bo sach va thuat hung dung dat marketing", "bo sach va thuat xung dung dat marketing", "bo sach ki thuat ung dung dat marketing", "bo sach va thuc ung dung dat marketing", "bo sach va thiet ung dung dat marketing", "bo sach va thuat ung dung va marketing", "bo sach va thuat ung dung tai marketing", "co sach va thuat ung dung dat marketing", "hoc sach va thuat ung dung dat marketing", "bo sach xa thuat ung dung dat marketing", "bo sach ha thuat ung dung dat marketing", "bo sach dao thuat ung dung dat marketing"

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

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