RegEx: Detecting the certain cyrillic words

[programmer.perl]

Hi Monks, I'm having trouble with matching the Cyrillic words. I want to find some needed words (words written by cyrillic fonts) in a website. I don't know how to write word 'желаю' to the regex // brackets (see my code example). I want to match whole word between the HTML brackets (<>). Source look like this: <br />CYRILLIC TEXT<br /> My code is:

!usr/bin/perl -w
use LWP::UserAgent;
$ua = LWP::UserAgent->new;
$req = HTTP::Request->new(GET => 'http://anyrussiansite.ru/');
$req->authorization_basic('user', 'password');
$content_of_cpasar = $ua->request($req)->as_string;

$content_of_cpasar =~ s/[\n\r]//g;
print "Found ",$&,"\n" if $content_of_cpasar =~ //i;