Please read and understand the license agreement regarding the use of LoadRunner (and generally any performance testing tool) against sites you do not own, manage, control or have explicit written permission from those who do have that ownership or responsibility. Performance testing tool are dangerous items, no different in destructive capabilities than a tactical nuclear weapon. In the wrong hands and pointed at the wrong target they will do serious damage.
HP has provided sample applications for you to use as part of your investigation or training. See the tutorial documentation. You also have available to you the vast universe of open source applications that you can download, install, configure and test on systems you ow, manage and control. If you want to some particularly interesting ones then given SugarCRM and Pentaho & Jasper Reports a try......after you have successfully navigated the sample applications available from HP and only on installations that you own - No hosted versions where you may risk distorting the production performance of other instances which share the same VM host.
So, it sucks that you can't access Google through LoadRunner, but then you shouldn't be touching Google with LoadRunner anyway as this conflicts with both the HP license agreement and the Google user agreement regarding the use of automation to exercise their interfaces.
Have a great morning,
James Pulley