Article ID: 2533409 - View products that this article applies to.
Assume that Microsoft Office SharePoint Server 2007 is running on a Japanese version Windows Server 2008 R2 server. In this situation, no search results return when you perform a search for existing Japanese characters in .eml files that are located in a document library.
To resolve this issue, apply the following update:
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.