Hi

To enable the search you can define (or add in the existent) search view like that in your xml :

<record id="view_YourModelName_search" model="ir.ui.view">
        <field name="name">YourModelName.search</field>
        <field name="model">YourModel</field>
        <field name="arch" type="xml">
           <search string="Sprints">
                <field name="product"/>            
            </search>
        </field>
    </record>

I hope this help !