Issue: In joomla 3.* (and virtuemart), the first search page result displays the results in the proper search page layout but all the subsequent pages are displayed with the home page layout.
Solution:
Basically, create a hidden menu “search” and give it the Menu item type “search > Search form or search results”. Get the id of this menu item.
Go to the module management page and open your search module for editing. The last field is “Set item id” enter the menu item id there and saved.
If you feel confused, check the link below, they have a nive walk through with screenshot and it’s where I found the solution to this issue, so credit goes to those guys.