I have build a search form "phone finder" on my local host by creating various custom fields like brands (nokia, apple, Samsung etc), os (android, ios, windows etc), weight (100g - 120g etc) and so on. For this I first created custom post type called "Phone" and created several custom fields using “Advance Custom Field” plug-in. I just want to test it before going live on my site. When I post the search form using shortcode, it displays the form as usual but doesn't show any result. When I type brand name on search box, its shows the result of specified post type as well as from other posts too. Where I went wrong? Could you please guide me how to make search form work?