Perhaps you should try some spelling variations:
"bo sach hoi thuat ung dung trong marketing" » "bo sach hoi thuat ung dung tri marketing", "bo sach khoi thuat ung dung trong marketing", "bo sach hoc thuat ung dung trong marketing", "bo sach ki thuat ung dung trong marketing", "bo sach hoi thuat dung dung trong marketing", "bo sach hoi thuat hung dung trong marketing", "bo sach hoi thuat xung dung trong marketing", "bo sach doi thuat ung dung trong marketing", "bo sach moi thuat ung dung trong marketing", "bo cach thoi thuat ung dung trong marketing", "co sach hoi thuat ung dung trong marketing"
"hoc sach ty thuat ung dung tvqg marketing" » "hoc sach ty thuat ung dung tri marketing", "hoc sach ty thuat dung dung tvqg marketing", "hoc sach ty thuat hung dung tvqg marketing", "hoc sach ty thuat xung dung tvqg marketing", "hoc sach ty thuat ung dung tong marketing", "hoc sinh ty thuat ung dung tvqg marketing", "hoc cac ty thuat ung dung tvqg marketing", "hoc anh ty thuat ung dung tvqg marketing", "hoc sach ky thuat ung dung tvqg marketing", "hoc sach my thuat ung dung tvqg marketing", "hoc sach te thuat ung dung tvqg marketing", "hoc sach y thuat ung dung tvqg marketing", "hoc sach tu thuat ung dung tvqg marketing", "hoc sach thu thuat ung dung tvqg 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 hoi thuat ung dung trong marketing") or ("hoc sach ty thuat ung dung tvqg marketing"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("bo sach hoi thuat ung dung trong marketing") OR ("hoc sach ty thuat ung dung tvqg marketing")).
• Removing quotes may allow a broader search: (( bo sach hoi thuat ung dung trong marketing ) or ( hoc sach ty thuat ung dung tvqg marketing )).
• Adding a wildcard symbol may retrieve word variants: (("bo sach hoi thuat ung dung trong marketing") or ("hoc sach ty thuat ung dung tvqg marketing"))*.