Search templates on Vuze allow you to create your own meta search. Once you have correctly installed a template for your chosen site Vuze will, by default, include search results from that site. Creating a template is difficult as the HTML of your chosen site must by manually coded into regular expressions but once created successfully the file can be shared and a simple double click will install the site to your search results.
Users and torrent index sites themselves provide ready-made templates for many sites, enabling Vuze to search those sites after you download and install the template for that site. By default, Vuze has only a limited number of search templates installed. It is up to you to find and install the desired templates.
See FAQ_Meta_Search for a lot more information.