Popular Search Terms Magento\Config\Model\Config\Source\Enabledisable Catalog Search Magento\CatalogSearch\Model\Adminhtml\System\Config\Backend\Engine Minimal Query Length validate-digits Maximum Query Length validate-digits Number of top search results to cache Number of popular search terms to be cached for faster response. Use “0” to cache all results after a term is searched for the second time. validate-digits Autocomplete Limit validate-digits Enable EAV Indexer Enable/Disable Product EAV indexer to improve indexation speed. Make sure that indexer is not used by 3rd party extensions. mysql Magento\Config\Model\Config\Source\Yesno