Bit Che Guevara search function is strict in what regards accents.
This means that searching for "Bruggen" yields different results than searching for "Brüggen", for instance
However, filenames and descriptions are all too often not exactly spellt.
Being so, it would be quite uselful if an "ignore accents" option existed, so that the user would not have to try with every conceivable (correct and incorrect) spelling of a given word while searching.