Perhaps you should try some spelling variations:
"bo sach ki thuat ung dung thi marketing" » "bo sach ki thuat ung dung tri marketing", "bo sach ki thuat ung dung thien marketing", "bo sach ki thuat ung dung thay marketing", "bo sach ki thuat dung dung thi marketing", "bo sach ki thuat hung dung thi marketing", "bo sach ki thuat xung dung thi marketing", "bo sach ky thuat ung dung thi marketing", "bo sach ki thuat ung dung tai marketing", "bo sach ki thuat ung dung chi marketing", "hoc sach ki thuat ung dung thi marketing", "bo sach kinh thuat ung dung thi marketing", "bo sach bai thuat ung dung thi marketing", "bo sach kem thuat ung dung thi marketing"
"co sach dao tinh hung dung va marketing" » "co sach dao tinh hung dung van marketing", "co sach dao tinh hung dung tac marketing", "co sach dao tinh hung dung gia marketing", "co sach dao tinh huong dung va marketing", "co sach dao vinh hung dung va marketing", "co sach dao dinh hung dung va marketing", "co sach dao tinh nhung dung va marketing", "co sach dao tinh phung dung va marketing", "co sach dao tinh dung dung va marketing", "co lanh dao tinh hung dung va marketing", "co sach dac tinh hung dung va marketing", "co sach dao minh hung dung va marketing", "cuon sach dao tinh hung dung va marketing", "hoc sach dao tinh hung dung va 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: (("co sach dao tinh hung dung va marketing") OR ("bo sach ki thuat ung dung thi marketing"))~.
• Removing quotes may allow a broader search: (( co sach dao tinh hung dung va marketing ) or ( bo sach ki thuat ung dung thi marketing ))~.
• Adding a wildcard symbol may retrieve word variants: (("co sach dao tinh hung dung va marketing") or ("bo sach ki thuat ung dung thi marketing"))*.