Perhaps you should try some spelling variations:
"bo sach my thuat ung dung trong marketing" » "bo sach my thuat ung dung tri marketing", "bo sach my thuat ung dung tvqg marketing", "bo sach my thuat dung dung trong marketing", "bo sach my thuat hung dung trong marketing", "bo sach my thuat song dung trong marketing", "bo sach ky thuat ung dung trong marketing", "bo sach ki thuat ung dung trong marketing", "bo sach va thuat ung dung trong marketing", "co sach my thuat ung dung trong marketing", "hoc sach my thuat ung dung trong marketing", "bo sach y thuat ung dung trong marketing", "bo sach ty thuat ung dung trong marketing", "bo sach mau thuat ung dung trong marketing"
"hoc cac thu thuat xung dung trong marketing" » "hoc cac thu thuat xung dung tri marketing", "hoc cac thu thuat xung dung tvqg marketing", "hoc cac thu thuat dung dung trong marketing", "hoc cac thu thuat hung dung trong marketing", "hoc cac thu thuat song dung trong marketing", "hoc cac phau thuat xung dung trong marketing", "hoc cac thu hut xung dung trong marketing", "hoc cac thu thuat cung dung trong marketing", "hoc cac thu thuat cuong dung trong marketing", "hoc cao thu thuat xung dung trong marketing", "hoc cach thuc thuat xung dung trong marketing", "hoc cac thoi thuat xung dung trong 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 my thuat ung dung trong marketing") or ("hoc cac thu thuat xung dung trong marketing"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("bo sach my thuat ung dung trong marketing") OR ("hoc cac thu thuat xung dung trong marketing")).
• Removing quotes may allow a broader search: (( bo sach my thuat ung dung trong marketing ) or ( hoc cac thu thuat xung dung trong marketing )).
• Adding a wildcard symbol may retrieve word variants: (("bo sach my thuat ung dung trong marketing") or ("hoc cac thu thuat xung dung trong marketing"))*.