SharePoint 2010 List Item Search - No Returns

I have a list in Sharepoint that has a few hundred enties in it. I use this list to keep track of servers in my work environment. Each server is associated with a wiki page.

Utlizing the Search feature from any of the wikis I am or was able to find a server on the previously mentioned list by typing in its name.

Now the search feature only gives me server names that were entered weeks or months ago but any new server entries do not come up in the search.

Any insight as to why this may be and how to resolve it would be greatly apprciated.