In Visual Studio 2010 search for two strings within single lines of c# code

I am using Visual Studio 2010 with c#. I need to search my codebase for find all lines of code where two strings are found in the single line of code (the line of code could span multiple lines which c# allows). The two strings are not connected and I don't know what will be between them. I just want to find all occurances where it finds both strings in the line of code. Is there anyway to do this? Is there another tool outside of Visual Studio that would allow this type of search?