[Plugin: WP Favorite Posts] Search in favorited posts?

WP Favorite Posts is a useful plugin, but it could be not enough for what I want to do. I’m running an intranet with a couple dozen posts a day, mostly news links. There are users who would favorite three or four posts a week, so their favorite list will son become unmanageable.

Is there any way, any query, that would allow me to provide a “Search in favorited posts” search form?

Thanks.

http://wordpress.org/extend/plugins/wp-favorite-posts/