This is how it looks.
It works just like Google (except that it's restricted in the sites it considers). Just put your query in the box and click on 'Search'. To gain access to this search facility and to bookmark it go here.
The benefit of using this Custom Search is that you are searching only sites that offer how-tos and tutorials, which filters out an enormous volume of detritus. You nevertheless obtain large collections of alternative learning materials in most cases.
If you identify other collections of tutorials please let me know!
1watchmojo.com: How to Ace a Job Interview