I added a 3rd party software(terminator) PPA in Ubuntu 14.04 by running the command below:

```
sudo apt-add-repository ppa:gnome-terminator/ppa
sudo apt-get update

```

And now, when I search for that package using:

```
sudo apt-cache search terminator

```

It doesn't show anything.

I wanted to know, why it is behaving like this ?