title: Magento: How to show only products with a custom binary attribute
body: <p>I created some custom attributes for my Products in the backend, put together in a single attribute set. Attributes are like:</p>
  
  <p>"Can be used to fill holes in teeth"
  "Can be used to to cover up fillings"
  "Is absorbable" </p>
  
  <p>All of those attributes are of the "yes/no" kind.</p>
  
  <p>I made all of them searchable, yet when I search for "fillings" or "teeth" or whatever they have as a text, no product is found, even so I have one product which has all of these attributes attached and all of them set to "yes".</p>
  
  <p>How would I go about if I wanted to have a link that displayed me all products that, say, had "is absorbable" set to "yes"?</p>