Perhaps you should try some spelling variations:
"bo sach dao thuat pdung dung trong marketing" » "bo sach dao thuat pdung dung tri marketing", "bo sach dao thuat dung dung trong marketing", "bo sach dao thuat ung dung trong marketing", "bo sach dao thuat xung dung trong marketing", "bo sach dao thuat phung dung trong marketing", "bo sach dao thuat phuong dung trong marketing", "bo sach dao phat pdung dung trong marketing", "bo sach va thuat pdung dung trong marketing", "bo sach cac thuat pdung dung trong marketing", "bo lanh dao thuat pdung dung trong marketing", "hoc sach dao thuat pdung dung trong marketing"
"co sach y thuat hung dung tvqg marketing" » "co sach y thuat hung dung tri marketing", "co sach y thuat dung dung tvqg marketing", "co sach y thuat ung dung tvqg marketing", "co sach y thuat xung dung tvqg marketing", "co sach y thuat nhung dung tvqg marketing", "co sach y thuat phung dung tvqg marketing", "co sach y thuat hung dung tong marketing", "cuon sach y thuat hung dung tvqg marketing", "hoc sach y thuat hung dung tvqg marketing", "co sach ky thuat hung dung tvqg marketing", "co sach my thuat hung dung tvqg marketing", "co sach kxy thuat hung 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 dao thuat pdung dung trong marketing") or ("co sach y thuat hung dung tvqg marketing"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("bo sach dao thuat pdung dung trong marketing") OR ("co sach y thuat hung dung tvqg marketing")).
• Removing quotes may allow a broader search: (( bo sach dao thuat pdung dung trong marketing ) or ( co sach y thuat hung dung tvqg marketing )).
• Adding a wildcard symbol may retrieve word variants: (("bo sach dao thuat pdung dung trong marketing") or ("co sach y thuat hung dung tvqg marketing"))*.