How does OCR handle words that are hard to read?
It might not find a match for them. The use of fuzzy searching may help find words incorrectly identified by the OCR process, but it will also return other near misses. For example, the word “fool” might be read via OCR as “foot” — so a normal search of “fool” wouldn’t find it. However, if you enter “fool” with fuzzy logic on, you’ll likely get that book (and page) as a result. However, you may also get “tool” and other near misses.