He visto varios errores... A ver, prueba así:
Código:
Options +FollowSymLinks
RewriteEngine on
RewriteRule restaurantes/(.*)/(.*)/$ /restaurantes.php?$1=$2
RewriteRule ^(.*)/([^/]+)-([^/]+)-([^/]+)-([^/]+)\.html $1/ballet_dance_search.php?plus=$2&n=$3&s=$4&t=$5