/**
* Retrieve additional searchable data from type instance
* Using based on product id and store_id data
*
* @param \Magento\Catalog\Model\Product $product
* @return array
*/
public function getSearchableData($product)
{
$searchData = [];
if ($product->getHasOptions()) {
$searchData = $this->_catalogProductOption->getSearchableData($product->getEntityId(), $product->getStoreId());
}
return $searchData;
}