Search Collation is Too Specific

When searching for an artist, song etc. which contains characters with diacritics e.g. ó é ç. Results which do not use the exact character are unesecarily filtered.
For example "sigur ros" does not match "sigur rós" since "o" !== "ó".

Whether this is actually a bug or correct behaviour is debatable. But to me it seems sensible (and least astonishing) to match non-accented characters with their accented counterparts.