Google search engine with opera10

Unfortunately I deleted the search URL from Google in my search settings from opera and I didn't know the right URL that I can start the search by pressing ENTER.

But I solved the problem and here is the way how to do it, if you should have the same problem:
1.)  open Google website
2.) right-click into input-field
3.) Click "add search"
4.) Make adjustments (Do not change the URL)
5.) Press "Ready"

Who doesn't know what I am talking about: