MyBB Community Forums

I know file .htaccess and can edit this file

http://vnsay.com -> http://www.vnsay.com/wikitienganh

http://vnsay.com/hoctienganh/ -> ??????? http://www.vnsay.com/hoctienganh

??????????????????????????????????????????????

use this site
http://www.htaccesstools.com

ewriteEngine On
.
..
#code
RewriteCond %{HTTP_HOST} ^.*example\.com$ [NC]
RewriteRule ^(.*)$ http://www.example.com/$1 [R=301,L]
#code

but when I paste this code into .htaccess file, forum can't run