Perhaps you should try some spelling variations:
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"bo sach dao phat dung ung tri marketing" » "bo sach dao phat dung ung tvqg marketing", "bo sach dao phat dung ung _ marketing", "bo sach dao phat dung ung cuu marketing", "bo sach dao pham dung ung tri marketing", "bo sach dao phan dung ung tri marketing", "bo sach dao thuat dung ung tri marketing", "bo lanh dao phat dung ung tri marketing", "bo sach va phat dung ung tri marketing", "bo sach dao phat dung cong tri marketing", "co sach dao phat dung ung tri marketing", "hoc sach dao phat dung ung tri marketing", "bo sach dao phat dung dung tri marketing", "bo sach dao phat dung cung tri marketing", "bo sach dao phat dung quang tri 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 sac ky thuat dan quang trong marketing") or ("bo sach dao phat dung ung tri marketing"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("bo sac ky thuat dan quang trong marketing") OR ("bo sach dao phat dung ung tri marketing"))*.
• Removing quotes may allow a broader search: (( bo sac ky thuat dan quang trong marketing ) or ( bo sach dao phat dung ung tri marketing ))*.