Perhaps you should try some spelling variations:
"bo sach giai thuat ung dung tai marketing" » "bo sach giai thuat ung dung tri marketing", "bo sach giai thuat ung dung tac marketing", "bo sach giai thuat ung dung thi marketing", "bo sach giai thoai ung dung tai marketing", "bo sach giai khat ung dung tai marketing", "bo sach gian thua ung dung tai marketing", "bo sach giao thuat ung dung tai marketing", "bo cac giai thuat ung dung tai marketing", "bo sach bai thuat ung dung tai marketing", "bo sach giai thuat dung dung tai marketing", "bo sach giai thuat hung dung tai marketing", "bo sach giai thuat xung dung tai marketing", "co sach giai thuat ung dung tai marketing", "hoc sach giai thuat ung dung tai marketing"
"bo sach xa thiet ung dung va marketing" » "bo sach xa thiet ung dung van marketing", "bo sach xa thiet ung dung tac marketing", "bo sach xa thiet ung dung gia marketing", "bo sach xa thuyet ung dung va marketing", "bo sach xa thich ung dung va marketing", "bo sach xa trien ung dung va marketing", "bo sach va thiet ung dung va marketing", "bo sach xuat thiet ung dung va marketing", "bo sach hoa thiet ung dung va marketing", "co sach xa thiet ung dung va marketing", "hoc sach xa thiet ung dung va marketing", "bo sach dao thiet ung dung va marketing", "bo sach nha thiet ung dung va marketing", "bo sach bai thiet ung dung va 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 sach xa thiet ung dung va marketing") or ("bo sach giai thuat ung dung tai marketing"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("bo sach xa thiet ung dung va marketing") OR ("bo sach giai thuat ung dung tai marketing"))*.
• Removing quotes may allow a broader search: (( bo sach xa thiet ung dung va marketing ) or ( bo sach giai thuat ung dung tai marketing ))*.