Would love to see some of the examples if you have them. Try here if you have search history on: https://www.google.com/history/

I tried this, and began to doubt my stat -- I saw no instances of the problem. But then I tried to repro the problem and I see that history doesn't record it.

E.g. search for [barack obam] (typo intentional). Then when it autocorrects, click the "I meant what I typed" link. Now look at your history: it doesn't mark that in any way.