Perhaps you should try some spelling variations:
"bo sach va thiet ung dung dat marketing" » "bo sach va thiet ung dung tac marketing", "bo sach va thiet ung dung van marketing", "bo sach va thiet ung dung thuat marketing", "bo sach va thuyet ung dung dat marketing", "bo sach va thich ung dung dat marketing", "bo sach va trien ung dung dat marketing", "bo sach va thiet ung dung va marketing", "bo sach va thiet ung dung tai marketing", "co sach va thiet ung dung dat marketing", "hoc sach va thiet ung dung dat marketing", "bo sach xa thiet ung dung dat marketing", "bo sach ha thiet ung dung dat marketing", "bo sach dao thiet ung dung dat marketing"
"bo sach ki thuat ung dung tri marketing" » "bo sach ki thuat ung dung trong marketing", "bo sach ki thuat ung dung tvqg marketing", "bo sach ki thuat ung dung _ marketing", "bo sach ki thuat dung dung tri marketing", "bo sach ki thuat hung dung tri marketing", "bo sach ki thuat xung dung tri marketing", "bo sach ky thuat ung dung tri marketing", "bo sach ki thuat ung dung tai marketing", "bo sach ki thuat ung dung tren marketing", "bo sach ki thuat ung dung sai marketing", "co sach ki thuat ung dung tri marketing", "hoc sach ki thuat ung dung tri marketing", "bo sach kinh thuat ung dung tri marketing", "bo sach bai thuat ung dung tri marketing", "bo sach kem thuat ung dung tri 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 thiet ung dung dat marketing") or ("bo sach ki thuat ung dung tri marketing"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("bo sach va thiet ung dung dat marketing") OR ("bo sach ki thuat ung dung tri marketing")).
• Removing quotes may allow a broader search: (( bo sach va thiet ung dung dat marketing ) or ( bo sach ki thuat ung dung tri marketing )).
• Adding a wildcard symbol may retrieve word variants: (("bo sach va thiet ung dung dat marketing") or ("bo sach ki thuat ung dung tri marketing"))*.