Contacts Search Nightmare!

A

AC Question

I have recently bought the Samsung Galaxy S5. In my contacts, I have managed to set up so that I can only see the contacts that I have saved on the Device. However, when I try to search for a contact, I get like 28 options and yet I have only saved like 4 which start with the same letters. I HATE it!!! Where are these other contacts coming from????? How do I turn them off???? Please help :-(