How to hide files found in spotlight? I want to hide TOP HIT, FOLDERS and DEVELOPER catalogues. The only item I expect is DEFINITION. Is there any way to do this? Here is my current preference, but it doesn't work.



This post can't solve my question, because 


I haven't installed Xcode, and I don't want to install such a huge application on my 128G MBA.
I don't want to search files on my disk at all.
Open the terminal, and execute

touch /Applications/Xcode.app


A zero-sized file named Xcode.app will be created under that path. Now you are able to see and hide the DEVELOPER catalogue in System Preferences -> Spotlight. Just like this: