Perhaps you should try some spelling variations:
"bo sach ki thuat hung dung thay marketing" » "bo sach ki thuat hung dung thuat marketing", "bo sach ki thuat hung dung phap marketing", "bo sach ki thuat hung dung tac marketing", "bo sach ki thuat ung dung thay marketing", "bo sach ki thuat xung dung thay marketing", "bo sach ki thuat chuong dung thay marketing", "bo sach ki thuat nhung dung thay marketing", "bo sach ki thuat phung dung thay marketing", "bo sach ki thuat hung dung tay marketing", "bo sach ki thuat hung dung thang marketing", "bo sach ki thuat hung dung thanh marketing", "bo sach ky thuat hung dung thay marketing", "co sach ki thuat hung dung thay marketing", "hoc sach ki thuat hung dung thay marketing", "bo sach kinh thuat hung dung thay marketing", "bo sach bai thuat hung dung thay marketing", "bo sach kem thuat hung dung thay marketing"
"bo sach va thuat dung dung tri marketing" » "bo sach va thuat dung dung trong marketing", "bo sach va thuat dung dung tvqg marketing", "bo sach va thuat dung dung _ marketing", "bo sach va thuat ung dung tri marketing", "bo sach va thuat xung dung tri marketing", "bo sach va thuat song dung tri marketing", "bo sach va thuat dung ung tri marketing", "bo sach va thuat dung dong tri marketing", "bo sach ky thuat dung dung tri marketing", "bo sach va thuc dung dung tri marketing", "bo sach va thiet dung dung tri marketing", "bo sach va thuat dung dung tai marketing", "bo sach va thuat dung dung tren marketing", "bo sach va thuat dung dung sai marketing", "co sach va thuat dung dung tri marketing", "hoc sach va thuat dung dung tri marketing", "bo sach xa thuat dung dung tri marketing", "bo sach ha thuat dung dung tri marketing", "bo sach dao thuat dung dung tri 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 thuat dung dung tri marketing") or ("bo sach ki thuat hung dung thay marketing"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("bo sach va thuat dung dung tri marketing") OR ("bo sach ki thuat hung dung thay marketing")).
• Removing quotes may allow a broader search: (( bo sach va thuat dung dung tri marketing ) or ( bo sach ki thuat hung dung thay marketing )).
• Adding a wildcard symbol may retrieve word variants: (("bo sach va thuat dung dung tri marketing") or ("bo sach ki thuat hung dung thay marketing"))*.