Pardon certain possible interrogation here with my persons account.
Handling much with diacritics, such would be good, yes.
Althought out of range for my person, my person thinks that Rolf Kellner developed a fine search engine with "his"
Sphider-plus which seems to have the most professionality and concern among search engines. May good and good may meet each other.
(Generally not a friend of search engines, since making people exreme lacy in training concentration and mindfulness/remembering/keeping in mind and totally dependend after a while, increasing unrestrained greed and let forget goodness and gratitute toward gifts and sacrifies.)