iMango is a supplement of Spotlight. It finds files, folders or contents in any file and diplays the results in a tree view, so that you can browse through the folder structure of the results much quicker and more intuitively than in Spotlight. Note: This utility is donationware; consider making a $5 donation to continue development.
What's new in iMango
OS X 10.9 Mavericks support, stability fix
Hidden files and folders support
Drag multiple files on window to search similar files