To only show projects relevant to you, you can edit the settings via the 'filter bubbles' (pictured below).
You can click on these filters to narrow down your search, for example the Distance filter gives the following options:
Once you've made a selection, the table will automatically update for you.
When you've found a project that sparks your interest, just click on the name to bring out the slider.
To access the documents for a project, just scroll down or click on [Builders & Documents] - you'll need to request a specific package off a specific builder so the builders have a record of who has downloaded what.