[Perlfect-search] russian words in search

[Petrov Ivan]

Hello all,
   I use version 3.20 of the Perlfect Search for search pages in
   russian language.
   But it searches only some words (in russian).
   If i comment this string by #
   $buffer =~ tr/������������������������������������������������������������/AACEOEUOEYOEecTOIunesOIuoeaIuoeaOIyoeaUEtoiaUNyoiaUAiaAoiAuA/;
   then i can't search russian words.
   What i have to do with this string or some else?

-- 
Best regards,
 Petrov                          mailto:ivan@yakute.elektra.ru