Perhaps you should try some spelling variations:
"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", "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"
"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 tri marketing"))~.
• Removing quotes may allow a broader search: (( co sach dao tinh hung dung va marketing ) or ( bo sach ki thuat ung dung tri marketing ))~.
• Adding a wildcard symbol may retrieve word variants: (("co sach dao tinh hung dung va marketing") or ("bo sach ki thuat ung dung tri marketing"))*.