Perhaps you should try some spelling variations:
"bo xach takky thuat ung dung trong marketing" » "bo xach takky thuat ung dung tri marketing", "bo xach takky thuat ung dung tvqg marketing", "bo xach tay thuat ung dung trong marketing", "bo xach takky thuat dung dung trong marketing", "bo xach takky thuat xung dung trong marketing", "bo xach takky thuat song dung trong marketing", "bo sach takky thuat ung dung trong marketing", "bo trach takky thuat ung dung trong marketing"
"hoc sach ky thuat hung dung sai marketing" » "hoc sach ky thuat hung dung tri marketing", "hoc sach ky thuat hung dung tac marketing", "hoc sach ky thuat hung dung van marketing", "hoc sach ky thuat dung dung sai marketing", "hoc sach ky thuat xung dung sai marketing", "hoc sach ky thuat chuong dung sai marketing", "hoc sach ky thuat nhung dung sai marketing", "hoc sach ky thuat phung dung sai marketing", "hoc sinh ky thuat hung dung sai marketing", "hoc cac ky thuat hung dung sai marketing", "hoc anh ky thuat hung dung sai marketing", "hoc sach ky thuat hung dung tai marketing", "hoc sach ky thuat hung dung va marketing", "hoc sach ky thuat hung dung dat marketing", "hoc sac ky thuat hung dung sai marketing", "hoc sach y thuat hung dung sai marketing", "hoc sach ty thuat hung dung sai 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 xach takky thuat ung dung trong marketing") or ("hoc sach ky thuat hung dung sai marketing"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("bo xach takky thuat ung dung trong marketing") OR ("hoc sach ky thuat hung dung sai marketing")).
• Removing quotes may allow a broader search: (( bo xach takky thuat ung dung trong marketing ) or ( hoc sach ky thuat hung dung sai marketing )).
• Adding a wildcard symbol may retrieve word variants: (("bo xach takky thuat ung dung trong marketing") or ("hoc sach ky thuat hung dung sai marketing"))*.