Perhaps you should try some spelling variations:
"bo sach y thuat dung dong tri marketing" » "bo sach y thuat dung dong trong marketing", "bo sach y thuat dung dong tvqg marketing", "bo sach y thuat dung dong _ marketing", "bo sach y thuat hung dong tri marketing", "bo sach y thuat ung dong tri marketing", "bo sach y thuat xung dong tri marketing", "bo sach y thuat dung cong tri marketing", "bo sach y thuat vung dong tri marketing", "bo sach y thuat dung trong tri marketing", "bo sach y thuat dung dong tai marketing", "bo sach y thuat dung dung tri marketing", "bo sach y thuat dung dong thi marketing", "hoc sach y thuat dung dong tri marketing", "bo sach ky thuat dung dong tri marketing", "bo sach my thuat dung dong tri marketing", "bo sach kxy thuat dung dong tri marketing"
"co sach bai thuyet dung dung thi marketing" » "co sach bai thuyet dung dung thien marketing", "co sach bai thuyet dung dung thay marketing", "co sach bai thuyet dung dung tac marketing", "co sach bai thuyet dong dung thi marketing", "co sach bai thuyet hung dung thi marketing", "co sach bai thuyet ung dung thi marketing", "co sach li thuyet dung dung thi marketing", "co sach ba tuyet dung dung thi marketing", "co sach bam huyet dung dung thi marketing", "co sach bai thuyet dung ung thi marketing", "co sach bai thuyet dang dung thi marketing", "co sach dao thuyet dung dung thi marketing", "co cac bai thuyet dung dung thi marketing", "co sach xa thuyet dung dung thi marketing", "co sach bai thuyet dung dung tai marketing", "co sach bai thuyet dung dung tri marketing", "co sach bai thuyet dung dung chi marketing", "cuon sach bai thuyet dung dung thi marketing", "hoc sach bai thuyet dung dung thi 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 dung dong tri marketing") or ("co sach bai thuyet dung dung thi marketing"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("bo sach y thuat dung dong tri marketing") OR ("co sach bai thuyet dung dung thi marketing")).
• Removing quotes may allow a broader search: (( bo sach y thuat dung dong tri marketing ) or ( co sach bai thuyet dung dung thi marketing )).
• Adding a wildcard symbol may retrieve word variants: (("bo sach y thuat dung dong tri marketing") or ("co sach bai thuyet dung dung thi marketing"))*.