If you want to have full search capability on your podcast site, here are the quick steps to do so:

1. Signup for the  Google Custom Search service at  https://cse.google.com/cse/ . It's free.   When you set up the custom search feature, fill in your podbean site URL, such as http://slug.podbean.com,  as the site to search.  

2.  Get the embed code from google custom search.

3.  Go to your Podbean account->Layout->Sidebar Widgets to add a "Text" widget on your sidebar.  Edit the widget by pasting in the google search embed code. Click "Save Changes" on the Sidebar widgets page. 

You are done. Now, you have a full site search bar on your sidebar.