Maybe you all know the feature, but maybe you don't. I've just found (here) a description of incremental search. It works in my Visual Studio 2005.
Just press CTRL + i and type something.
The VS will find the first phrase you type (without the search window :-).
To find next occur just press CTRL + i again.
Press ESC to exit the search.
Excellent feature. I used it in a few years ago but I forgot that it exists.
Thank you Sara