Can't pull anything except the title

Can there be an example using this pg’s code in order to check that its working correctly? It might also be a clearer explanation to understand navigation and identifying which class/id/element combo to use.

It also seems like editing the selector without rewriting a new post, doesn’t render. I noticed this when trying to use title again after other elements did not work.

http://ww.wp.xz.cn/extend/plugins/wp-web-scrapper/