Perhaps you should try some spelling variations:
"hoc sach dau thuat ung dung trong marketing" » "hoc sach dau thuat ung dung tri marketing", "hoc sach dau thuat ung dung tvqg marketing", "hoc sach phau thuat ung dung trong marketing", "hoc sach dau thau ung dung trong marketing", "hoc sach thu thuat ung dung trong marketing", "hoc sach dau thuat dung dung trong marketing", "hoc sach dau thuat hung dung trong marketing", "hoc sach dau thuat xung dung trong marketing", "hoc sinh dau thuat ung dung trong marketing", "hoc cac dau thuat ung dung trong marketing", "hoc anh dau thuat ung dung trong marketing", "hoc sach dao thuat ung dung trong marketing", "hoc sach dat thuat ung dung trong marketing", "hoc sach mau thuat ung dung trong marketing"
"bo sach nha thuat ung dung chien marketing" » "bo sach nha thuat ung dung thien marketing", "bo sach nha thuat ung dung thi marketing", "bo sach nha thuat dung dung chien marketing", "bo sach nha thuat hung dung chien marketing", "bo sach nha thuat xung dung chien marketing", "bo sach nghe thuat ung dung chien marketing", "bo sach phau thuat ung dung chien marketing", "bo sach thu thuat ung dung chien marketing", "co sach nha thuat ung dung chien 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: (("hoc sach dau thuat ung dung trong marketing") or ("bo sach nha thuat ung dung chien marketing"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("hoc sach dau thuat ung dung trong marketing") OR ("bo sach nha thuat ung dung chien marketing")).
• Removing quotes may allow a broader search: (( hoc sach dau thuat ung dung trong marketing ) or ( bo sach nha thuat ung dung chien marketing )).
• Adding a wildcard symbol may retrieve word variants: (("hoc sach dau thuat ung dung trong marketing") or ("bo sach nha thuat ung dung chien marketing"))*.