How To Find Things In Unity

The dash has several specific lenses you can activate depending on what type of thing you are searching for. There are search lenses for "whole computer and online" (the main one first opened), "applications", "files and folders", "videos", "music", "photos", and "online".

In your example with gparted go to dash type in "gparted" and the icon will show below the search bar and if clicked on will open gparted; or you can go to the "applications" lens (2nd icon on the bottom of the dash page opened) > Installed > show "x" more results (x is "166" more in my case but will depend on what is installed in yours), and scan through all installed applications which will include gparted. This is equivalent to going to the older menus for applications in older versions and with windows etc. The specific lens for your example is the second icon at the bottom of the dash window and will allow you to peruse all applications when you "don't know what you're looking for".

I have attached 3 screenshots, the first is the main dash page with "gparted" entered in the search bar, the icon below the search bar when clicked will open it. The second is the applications lens selected by the icon at the bottom of the page, then the drop down arrow beside "Installed" is clicked to show all applications. There you can see gparted along with a lot of other applications to be looked through. The third is for files and folders, you can see files I have accessed previously in the first row, it also gives access to specific folders such as Downloads and various folders I've visited. There are even more lenses at the bottom of the page you can explore for the other categories I noted in the first sentence of this post. Hope that helps using dash a bit more, cheers, yeti.

Edit: as Frogs Hair noted gparted is not part of a standard install and has to be installed by the user.