Magento 2 : Example of using searchCriteriaBuiler

ListProduct_SearchCriteriaBuilder.php

<?php

namespace MyNameSpace\Catalog\Block\Product

use Magento\Catalog\Model\ProductRepository;
use Magento\Framework\Api\FilterBuilder;
use Magento\Framework\Api\Search\FilterGroupBuilder;
use Magento\Framework\Api\SearchCriteriaBuilder;
use Magento\Framework\View\Element\Template;

class MyClass extends Template
{
    /** @var \Magento\Framework\Registry */
    protected $_coreRegistry;
    /** @var ProductRepository */
    private $_productRepository;
    /** @var FilterBuilder */
    private $_filterBuilder;
    /** @var FilterGroupBuilder */
    private $_filterGroupBuilder;
    /** @var SearchCriteriaBuilder  */
    private $_searchCriteriaBuilder;
  
    public function __construct(
        \Magento\Catalog\Block\Product\Context $context,
        array $data,
        SearchCriteriaBuilder $searchCriteriaBuilder,
        FilterBuilder $filterBuilder,
        FilterGroupBuilder $filterGroupBuilder,
        ProductRepository $productRepository
    ) {
        parent::__construct($context, $data);
        $this->_coreRegistry = $context->getRegistry();
        $this->_productRepository = $productRepository;
        $this->_filterBuilder = $filterBuilder;
        $this->_filterGroupBuilder = $filterGroupBuilder;
        $this->_searchCriteriaBuilder = $searchCriteriaBuilder;
    }
  
  /**
     * Get Current Product
     * @return \Magento\Catalog\Model\Product
     */
    public function getProduct()
    {
        return $this->_coreRegistry->registry('product');
    }

  /**
   * Get y own Product List
   * @return \Magento\Catalog\Api\Data\ProductInterface[]
   */
    public function getMyProducts()
    {   /** @var  \Magento\Catalog\Model\Product $product */
        $product = $this->getProduct();
        $customAttributeFilter = $this->_filterBuilder
            ->setField('my_custom_attribute')
            ->setValue($product->getData('my_custom_attribute'))
            ->setConditionType('eq')
            ->create();
        $attributeSetFilter = $this->_filterBuilder
            ->setField('attribute_set_id')
            ->setValue($product->getAttributeSetId())
            ->setConditionType('eq')
            ->create();

        $filterGroupContract = $this->_filterGroupBuilder
            ->addFilter($customAttributeFilter)
            ->create();

        $filterGroupAttributeSet = $this->_filterGroupBuilder
            ->addFilter($attributeSetFilter)
            ->create();

        $criteria = $this->_searchCriteriaBuilder
            ->setFilterGroups(array($customAttributeFilter , $filterGroupAttributeSet))
            ->create();

        $productRepository = $this->_productRepository;
        return $productRepository->getList($criteria)->getItems();
    }
}