Perhaps you should try some spelling variations:
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"bo sach dao phat xung ung tvqg marketing" » "bo sach dao phat xung ung tri marketing", "bo sach dao phan xuong ung tvqg marketing", "bo sach dao thuat xung ung tvqg marketing", "bo sach dao phan ung ung tvqg marketing", "bo lanh dao phat xung ung tvqg marketing", "bo sach va phat xung ung tvqg marketing", "bo sach dao phat dung ung tvqg marketing", "bo sach dao phat cung ung tvqg marketing", "bo sach dao phat huong ung tvqg marketing", "co sach dao phat xung ung tvqg marketing", "hoc sach dao phat xung ung 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 ky thuat dung cung trong marketing") or ("bo sach dao phat xung ung tvqg marketing"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("bo sach ky thuat dung cung trong marketing") OR ("bo sach dao phat xung ung tvqg marketing")).
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• Adding a wildcard symbol may retrieve word variants: (("bo sach ky thuat dung cung trong marketing") or ("bo sach dao phat xung ung tvqg marketing"))*.