Perhaps you should try some spelling variations:
"bo sach y thuat ung dung trong marketing" » "bo sach y thuat ung dung tri marketing", "bo sach y thuat dung dung trong marketing", "bo sach y thuat hung dung trong marketing", "bo sach y thuat xung dung trong marketing", "co sach y thuat ung dung trong marketing", "hoc sach y thuat ung dung trong marketing", "bo sach ky thuat ung dung trong marketing", "bo sach my thuat ung dung trong marketing", "bo sach kxy thuat ung dung trong marketing"
"bo sach y thuat ung dung tvqg marketing" » "bo sach y thuat ung dung tri marketing", "bo sach y thuat dung dung tvqg marketing", "bo sach y thuat hung dung tvqg marketing", "bo sach y thuat xung dung tvqg marketing", "bo sach y thuat ung dung tong marketing", "co sach y thuat ung dung tvqg marketing", "hoc sach y thuat ung dung tvqg marketing", "bo sach ky thuat ung dung tvqg marketing", "bo sach my thuat ung dung tvqg marketing", "bo sach kxy thuat ung dung tvqg marketing"

Try widening your search to All Fields.

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 y thuat ung dung trong marketing") or ("bo sach y thuat ung dung tvqg marketing"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("bo sach y thuat ung dung trong marketing") OR ("bo sach y thuat ung dung tvqg marketing")).
• Removing quotes may allow a broader search: (( bo sach y thuat ung dung trong marketing ) or ( bo sach y thuat ung dung tvqg marketing )).
• Adding a wildcard symbol may retrieve word variants: (("bo sach y thuat ung dung trong marketing") or ("bo sach y thuat ung dung tvqg marketing"))*.