Searching for items with non-US characters in the title

Maybe this wouldn’t be worth the effort for the one time every two years it would help, but searching for titles that contain non-US characters requires the use of the exact matching characters. For example, the movie “Tár” is not found by searching for “Tar”. I don’t know, but I’ll bet there’s an language independent string function that will match ‘á’ with ‘a’.