I’ve fixed the problem with this code:
<title>
<?php
global $page, $paged;
wp_title('|', true, 'right');
bloginfo('name');
$site_description = get_bloginfo('description', 'display');
if ($site_description && (is_home() || is_front_page()))
echo " | $site_description";
if ($paged >= 2 || $page >= 2)
echo ' | ' . sprintf(__('Sayfa %s', 'twentyten'), max($paged, $page));
?>
</title>