Hide search and Advanced search

Hi,

I need to hide search option for some of the roles. I created new action bar layout without search and associated to the role.

But still I see the objects in the search drop down list. This role has access to account, Contact and Opportunity. In the search drop down list, I see Accounts, contact, Opportunities, Products and Users.

Please let me know the options to completely hide the search.

Thank you.

Regards,

Krishna