Perhaps you should try some spelling variations:
"hoc sach ky thuat hung dung trong marketing" » "hoc sach ky thuat hung dung tvqg marketing", "hoc sach ky thuat dung dung trong marketing", "hoc sach ky thuat xung dung trong marketing", "hoc sach ky thuat chuong dung trong marketing", "hoc sach ky thuat nhung dung trong marketing", "hoc sach ky thuat phung dung trong marketing", "hoc sinh ky thuat hung dung trong marketing", "hoc cac ky thuat hung dung trong marketing", "hoc anh ky thuat hung dung trong marketing", "hoc sac ky thuat hung dung trong marketing", "hoc sach y thuat hung dung trong marketing", "hoc sach ty thuat hung dung trong marketing"
"co cau ky thuat ung dung tri marketing" » "co cau ky thuat ung dung tvqg marketing", "co cau ky thuat ung dung _ marketing", "co cau ky thuat ung dung cuu marketing", "co cau ky thuat dung dung tri marketing", "co cau ky thuat xung dung tri marketing", "co cau ky thuat song dung tri marketing", "co cau ky thuat ung dung tai marketing", "co cau ky thuat ung dung tren marketing", "co cau ky thuat ung dung sai marketing", "bo cau ky thuat ung dung tri marketing", "co cao ky thuat ung dung tri marketing", "co cac ky thuat ung dung tri marketing", "co chu ky thuat ung dung tri marketing"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (("hoc sach ky thuat hung dung trong marketing") OR ("co cau ky thuat ung dung tri marketing"))~.
• Removing quotes may allow a broader search: (( hoc sach ky thuat hung dung trong marketing ) or ( co cau ky thuat ung dung tri marketing ))~.
• Adding a wildcard symbol may retrieve word variants: (("hoc sach ky thuat hung dung trong marketing") or ("co cau ky thuat ung dung tri marketing"))*.