app/Filament/Resources/ItemResource.php

@@ -53,6 +53,7 @@ class ItemResource extends Resource
                             ->required()
                         // ->preload()
                         // ->nullable(),
+                            ->searchable()
                             ->reactive()
                             ->options(function (callable $get) {
                                 $userHas = Filament::auth()->user()->plant_id;