Thx a lot.
I've found a little bug for my case (Phpdig 1.8.7)

.
Find in robot_functions.php, line 190:
Code:
//replace foo characters by space
$text = eregi_replace("[*{}()\"\r\n\t-]+"," ",$text);
and replace with (without "-"):
Code:
//replace foo characters by space
$text = eregi_replace("[*{}()\"\r\n\t-]+"," ",$text);
And the working case:
http://www.john-howe.com/search/...&query_string=barad-d%FBr
A lot of thx for yoru help and time.
Regards, Dom