To search any Wikia wiki, you can use the search bar above the sidebar on the right.
Your initial search will probably only search the main namespace and a few others. After you search, you may find that you need to expand your search to other areas of the wiki. To do this, click the "Advanced" link that appears at the bottom of your search results. It will open a box that allows you to select more namespaces and continue searching.
Other ways to find pages
To search for wikis across Wikia, use the search box on our main page.