Perhaps you should try some spelling variations:
"bo sach va thuc ung dung trong marketing" » "bo sach va thuc ung dung tri marketing", "bo sach va thuc dung dung trong marketing", "bo sach va thuc cung dung trong marketing", "bo sach va thuc uong dung trong marketing", "hoc sach va thuc ung dung trong marketing", "bo sach xa thuc ung dung trong marketing", "bo sach ha thuc ung dung trong marketing", "bo sach dao thuc ung dung trong marketing"
"co sach va thuat cung dung tvqg marketing" » "co sach va thuat cung dung tri marketing", "co sach va thuat chung dung tvqg marketing", "co sach va thuat cong dung tvqg marketing", "co sach va thuat dung dung tvqg marketing", "co sach va thuat cuong dung tvqg marketing", "co sach va thuat cung ung tvqg marketing", "co sach va thuat cung dung tong marketing", "co sach ky thuat cung dung tvqg marketing", "co sach ki thuat cung dung tvqg marketing", "co sach va thiet cung dung tvqg marketing", "co sach xa thuat cung dung tvqg marketing", "co sach ha thuat cung dung tvqg marketing", "co sach dao thuat cung dung tvqg marketing", "cuon sach va thuat cung dung tvqg marketing", "hoc sach va thuat cung 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 va thuc ung dung trong marketing") or ("co sach va thuat cung dung tvqg marketing"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("bo sach va thuc ung dung trong marketing") OR ("co sach va thuat cung dung tvqg marketing")).
• Removing quotes may allow a broader search: (( bo sach va thuc ung dung trong marketing ) or ( co sach va thuat cung dung tvqg marketing )).
• Adding a wildcard symbol may retrieve word variants: (("bo sach va thuc ung dung trong marketing") or ("co sach va thuat cung dung tvqg marketing"))*.