i have a portfolio component in my joomla web site with some article and image there , but when i search for them in my site with search module , search module do not find them and just searching in my article , contacts and my tags ! how i can set search module to search in my components too ? i need other plugin or some thing to write in codes or ...? thanks.
You can create a plugin by following this tutorial :
https://docs.joomla.org/J3.x:Creating_a_search_plugin