Hi,
If you want to modify the search view and 
add a new filter after an existing one (like after the "Out" filter), 
you need to inherit the original search view and use the correct xpath to position your new filter.
Here’s a simple example of how you can do that:
xml
<record id="fleet_vehicle_inspection_search" model="ir.ui.view">
    <field name="name">fleet.vehicle.inspection.search.inherit</field>
    <field name="model">fleet.vehicle.inspection</field>
    <field name="inherit_id" ref="fleet_vehicle_inspection.fleet_vehicle_inspection_search"/>
    <field name="arch" type="xml">
        <xpath expr="//filter[@name='out']" position="after">
            <filter string="Direction" name="direction" domain="[('your_field_name', '=', 'value')]"/>
        </xpath>
    </field>
</record>
Hope it helps