sitecorian/SitecoreSearchContrib — pull request #19 by markstiles (2013-03-04 21:58:38+00:00)
Title: allow search for multiple templates

the code was provided by Thomas Lin.
http://corecompetency.tohams.com/index.php/adding-or-to-the-template-filter-of-advanced-database-crawler/

It allows you to search by multiple template id's.