To search for your code, first select your device's type (e.g, TV, DVD, etc.), select your universal remote (GE, RCA, etc.) and start typing in your device's brand name.
After entering the first two characters, brand suggestions will start to appear under the input box. If one matches your device, click/tap on it. If your brand is the first in the suggestion list, you can press the submit button or 'Enter' immediately, without typing in the full brand name.