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 xa thuc ung dung dat marketing" » "bo sach xa thuc ung dung tac marketing", "bo sach xa thuc ung dung van marketing", "bo sach xa thuc ung dung thuat marketing", "bo sach xa thuc dung dung dat marketing", "bo sach xa thuc cung dung dat marketing", "bo sach xa thuc uong dung dat marketing", "bo sach xa thuc ung dung va marketing", "bo sach xa thuc ung dung tai marketing", "co sach xa thuc ung dung dat marketing", "hoc sach xa thuc ung dung dat marketing", "bo sach dao thuc ung dung dat marketing", "bo sach nha thuc ung dung dat marketing", "bo sach bai thuc ung dung dat marketing", "bo sach va thuc ung dung dat marketing", "bo sach xa phuc ung dung dat marketing", "bo sach a thuc 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 xa thuc 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 xa thuc ung dung dat marketing") OR ("bo sach ky thuat ung dung trong marketing"))*.
• Removing quotes may allow a broader search: (( bo sach xa thuc ung dung dat marketing ) or ( bo sach ky thuat ung dung trong marketing ))*.