I can't search for my documents in substring or in case when its names contain numerical values. For example, I have a document named "Letters to Father Frost". I can find it typing "letters" in a search string, but if I would type a part of word, for example, "letter" the inquiry will return nothing.
And there's another problem with documents containing numerical values in their names. For example, the document named "1-1/2009" exists. I can't find it neither full name, nor a part of name. Maybe it's not a bug, but seems a serious lack.