My Facebook App Doesnt Show Up On Searches

Adding an App to a Page

As a Page Tab App developer, you can prompt users to install your Page Tab App by including an “Install this Page Tab App” link that explicitly directs the user to the /dialog/pagetab endpoint, either within your Page Tab App or Website:

http://www.facebook.com/dialog/pagetab?app_id=YOUR_APP_ID&next=YOUR_URL

where YOUR_APP_ID and YOUR_URL can be found in your app settings.

This URL brings up the Add to Page Dialog:

Read more in the documentation.