The general problem with this is, that each page is stored as one single object within wordpress (as a post type object). The plugin therefore can only return the whole page as one single result. This then would not work, the plugin would only return the same exact page every time.
If you have a set of pages/posts/post types, that are categorized in some way, then you can restrict the search to those categories only.
Best, Ernest Marcinko If you like my products, don't forget to rate them on codecanyon :)