Hi Reza.

Unfortunately there no way to extend the Search Engine capabilities through the software. You would need to get your hands on the code in order to get it to work in a different way.

I recommend anyway that you consult our online guide in order to better understand the way the Search Engine works.

http://help.websitex5.com/it/v12/evo/index.html?_ga=1.186685096.1277910376.1445587752

I Hope I've been helpful