One of the main benefits that Summon offers is the ability to narrow down the results that you've received with your keyword search by using facets. The video that you watched introduced you to the idea of facets, but now you have the opportunity to use them. Look in the left-hand area of the results screen in Summon, and view the options under "Refine your search."
You can limit by:
After using some of these facets to narrow down your results, how many results do you have now? Fewer?