Perhaps you should try some spelling variations:
"bo sach my thuat dung dung tri marketing" » "bo sach my thuat dung dung trong marketing", "bo sach my thuat dung dung tvqg marketing", "bo sach my thuat dung dung _ marketing", "bo sach my thuat hung dung tri marketing", "bo sach my thuat ung dung tri marketing", "bo sach my thuat xung dung tri marketing", "bo sach my thuat dung ung tri marketing", "bo sach my thuat dung dong tri marketing", "bo sach ki thuat dung dung tri marketing", "bo sach va thuat dung dung tri marketing", "bo sach my thuat dung dung tai marketing", "bo sach my thuat dung dung tren marketing", "bo sach my thuat dung dung sai marketing", "co sach my thuat dung dung tri marketing", "hoc sach my thuat dung dung tri marketing", "bo sach y thuat dung dung tri marketing", "bo sach ty thuat dung dung tri marketing", "bo sach mau thuat dung dung tri marketing"
"bo sach ky thuat cong dung tac marketing" » "bo sach ky thuat cong dung van marketing", "bo sach ky thuat cong dung phap marketing", "bo sach ky thuat cong dung luoc marketing", "bo sach ky thuat song dung tac marketing", "bo sach ky thuat trong dung tac marketing", "bo sach ky thu cong dung tac marketing", "bo sach ky thuat cuong dung tac marketing", "bo sach ky thuat cong dong tac marketing", "bo sach ky thuat cong luong tac marketing", "bo sach ky thuat cong dung tai marketing", "bo sach ky thuat cong dung cac marketing", "bo sach ky thuat cong dung tay marketing", "co sach ky thuat cong dung tac marketing", "hoc sach ky thuat cong dung tac marketing", "bo sac ky thuat cong dung tac marketing", "bo sach y thuat cong dung tac marketing", "bo sach ty thuat cong dung tac 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 my thuat dung dung tri marketing") or ("bo sach ky thuat cong dung tac marketing"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("bo sach my thuat dung dung tri marketing") OR ("bo sach ky thuat cong dung tac marketing")).
• Removing quotes may allow a broader search: (( bo sach my thuat dung dung tri marketing ) or ( bo sach ky thuat cong dung tac marketing )).
• Adding a wildcard symbol may retrieve word variants: (("bo sach my thuat dung dung tri marketing") or ("bo sach ky thuat cong dung tac marketing"))*.