Is there any other information in those education documents that match information on your passport? For example date of birth or a national identity number? If the answer is yes, I really think an LOE that explains the misspelling and highlighting those other matching information is more than enough. At the end of the day according to cic they only care about the name in your passport even if it is misspelled in other documents. Checkout this link:
http://www.cic.gc.ca/english/helpcentre/answer.asp?qnum=014&top=4
Look, it is very common to have different spellings when you translate non-english names. It is the same case when people translate Mohammed (Mohamed, Muhammed...etc).
I honestly believe you have nothing to worry about and if there is any issue they will definitely ask for an explanation. Don't let this issue stop you from progressing your application. That would be my advice.
http://www.cic.gc.ca/english/helpcentre/answer.asp?qnum=014&top=4
Look, it is very common to have different spellings when you translate non-english names. It is the same case when people translate Mohammed (Mohamed, Muhammed...etc).
I honestly believe you have nothing to worry about and if there is any issue they will definitely ask for an explanation. Don't let this issue stop you from progressing your application. That would be my advice.