Automatically add search results to post or page

My WordPress site mainly consists of pages but I guess my question relates to posts as well: since I am not the know-all of everything, I would like to automatically append each page of my site with a section ‘Also look at’ which lists 10 or 20 links that match a Google search for certain keywords which also apply to the page itself. Support my page is all about ABC 123 xyz. That page has a comments section for people to add info but after the comments is another heading ‘Also look at’ which lists 20 results that you would also get if you Googled for ‘ABC AND 123 AND xyz’. Is there a plug-in that does this? Some other way of getting this done (not being a coder myself but willing to learn)?

To be more specific: I am looking into not just displaying the search results for a query across the entire net but a search on one or more specific sites or forums that focus on the same type of information as my site does.