Can sadaqah and lillah count towards missed zakah payments?

It turns out that I have been incorrectly calculating my zakah for the last few years and I have paid less than I should have. However during those years I did also pay lillah and sadaqah. Can I use the the sadaqah and lillah I paid during those years to count towards the zakah I owe for the previous years? I would appreciate an answer that conforms to the Hanafi madhhab.