Perhaps you should try some spelling variations:
"bo sach ky thuat xung dung trong marketing" » "bo sach ky thuat xung dung tvqg marketing", "bo sach ky thuat dung dung trong marketing", "bo sach ky thuat hung dung trong marketing", "bo sach ky thuat song dung trong marketing", "bo sach ky thuat cung dung trong marketing", "bo sach ky thuat cuong dung trong marketing", "co sach ky thuat xung dung trong marketing", "hoc sach ky thuat xung dung trong marketing", "bo sac ky thuat xung dung trong marketing", "bo sach y thuat xung dung trong marketing", "bo sach ty thuat xung dung trong marketing"
"bo sach kinh thuat ung dung tri marketing" » "bo sach kinh thuat ung dung tvqg marketing", "bo sach kinh thuat ung dung _ marketing", "bo sach kinh thuat ung dung cuu marketing", "bo sach ki thuat ung dung tri marketing", "bo sach dich thuat ung dung tri marketing", "bo sach ninh thuan ung dung tri marketing", "bo sach kinh thuat dung dung tri marketing", "bo sach kinh thuat hung dung tri marketing", "bo sach kinh thuat song dung tri marketing", "bo sach kinh thuat ung dung tai marketing", "bo sach kinh thuat ung dung tren marketing", "bo sach kinh thuat ung dung sai marketing", "co sach kinh thuat ung dung tri marketing", "hoc sach kinh thuat ung dung tri 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 kinh thuat ung dung tri marketing") or ("bo sach ky thuat xung dung trong marketing"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("bo sach kinh thuat ung dung tri marketing") OR ("bo sach ky thuat xung dung trong marketing")).
• Removing quotes may allow a broader search: (( bo sach kinh thuat ung dung tri marketing ) or ( bo sach ky thuat xung dung trong marketing )).
• Adding a wildcard symbol may retrieve word variants: (("bo sach kinh thuat ung dung tri marketing") or ("bo sach ky thuat xung dung trong marketing"))*.