Perhaps you should try some spelling variations:
"bo sac ky thuat ung dung tong marketing" » "bo sac ky thuat ung dung trong marketing", "bo sac ky thuat ung dung dong marketing", "bo sac ky thuat ung dung tvqg marketing", "bo sac ky thuat dung dung tong marketing", "bo sac ky thuat hung dung tong marketing", "bo sac ky thuat xung dung tong marketing", "bo sac ky thuat ung dung thong marketing", "bo sac ky thuat ung dung cong marketing", "bo cac ky thuat ung dung tong marketing", "bo sai ky thuat ung dung tong marketing"
"bo sach ha thuc dung dung tai marketing" » "bo sach ha thuc dung dung tri marketing", "bo sach ha thuc dung dung tac marketing", "bo sach ha thuc dung dung thi marketing", "bo sach ha thuoc dung dung tai marketing", "bo sach ha thuy dung dung tai marketing", "bo sach ha tuc dung dung tai marketing", "bo sach ha thuc dung ung tai marketing", "bo sach ha thuc dung dong tai marketing", "bo sach ha thuc dang dung tai marketing", "co sach ha thuc dung dung tai marketing", "hoc sach ha thuc dung dung tai marketing", "bo sach nha thuc dung dung tai marketing", "bo sach han thuc dung dung tai marketing", "bo sach xa thuc dung dung tai marketing", "bo sach va thuc dung dung tai marketing", "bo sach ha thu dung dung tai 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 ha thuc dung dung tai marketing") or ("bo sac ky thuat ung dung tong marketing"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("bo sach ha thuc dung dung tai marketing") OR ("bo sac ky thuat ung dung tong marketing")).
• Removing quotes may allow a broader search: (( bo sach ha thuc dung dung tai marketing ) or ( bo sac ky thuat ung dung tong marketing )).
• Adding a wildcard symbol may retrieve word variants: (("bo sach ha thuc dung dung tai marketing") or ("bo sac ky thuat ung dung tong marketing"))*.