Excluding Sitecore items from Search Results
by David on Jan.27, 2012, under Sitecore
Excluding Sitecore items from your search results in Sitecore using Lucene
Lets say you want to exclude a particular item from being displayed in your search results when searching in your Sitecore site. This can be done by adding a couple of lines to your web.config file.
Do a search for:
“Sitecore.Search.Crawlers.DatabaseCrawler, Sitecore.Kernel”
It’s possible to add templates or IDs of items of which should be included to the index or excluded from it. Lets say you want to exclude all items with a particular template, you would reference that ID in the tags. You may need to clear Sitecore cache and re-build the index through Sitecore Control Panel (but not sure on that).
Example:
<include hint=”list:IncludeTemplate”><sampleItem>{76036F5E-CBCE-46D1-AF0A-4143F9B557AA}</sampleItem>
</include><exclude hint=”list:ExcludeTemplate”><layout>{3A45A723-64EE-4919-9D41-02FD40FD1466}</layout>
</exclude>
A good reference for this is on this site:

