Can I get student loans to go back to school after earning a Bachelors of Science?

I earned a Bachelors of Science in Computer Science on May 5, 2006.. three years ago. all of my student loans are currently in default, because nobody is hiring. can i get student loans/financial aid to go to some type of graduate school even though my current loans are in default? if i do, will that keep collectors from garnishing my wages?

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