When customizing your search screen you will notice each field has been color coded. You my view the key for these colors by clicking the Show/Hide Field Groups drop down.
You may remove check marks in order to hide entire groups to make locating fields easier.

Pink, Orange and Gray represent MLS data

Everything else is TMK (public record) data

It is important to know which type of search field you are using in order to get the expected results. It is especially important when searching for TMK data.
For example: When “accidentally” using an MLS field as part of your search when looking for public data, your results will be limited to parcels that have a listing.

Customizing your search page’s search fields