SELECT 
  lang.name, 
  lang.value 
FROM 
  cscart_language_values lang 
WHERE 
  lang.lang_code = 'en' 
  AND lang.name IN (
    'cannot_buy', 'no_products_selected', 
    'error_no_items_selected', 'delete_confirmation', 
    'text_out_of_stock', 'items', 'text_required_group_product', 
    'save', 'close', 'notice', 'warning', 
    'error', 'empty', 'text_are_you_sure_to_proceed', 
    'text_invalid_url', 'error_validator_email', 
    'error_validator_phone', 'error_validator_phone_mask', 
    'error_validator_phone_mask_with_phone', 
    'error_validator_phone_phone_number_with_country_selection', 
    'error_validator_integer', 'error_validator_multiple', 
    'error_validator_password', 'error_validator_required', 
    'error_validator_zipcode', 'error_validator_message', 
    'text_page_loading', 'error_ajax', 
    'text_changes_not_saved', 'text_data_changed', 
    'placing_order', 'order_was_not_placed', 
    'file_browser', 'browse', 'more', 
    'text_no_products_found', 'cookie_is_disabled', 
    'insert_image', 'image_url', 'loading', 
    'text_editing', 'save', 'cancel', 
    'cannot_buy', 'no_products_selected', 
    'error_no_items_selected', 'delete_confirmation', 
    'text_out_of_stock', 'items', 'text_required_group_product', 
    'save', 'close', 'notice', 'warning', 
    'error', 'empty', 'text_are_you_sure_to_proceed', 
    'text_invalid_url', 'error_validator_email', 
    'error_validator_phone', 'error_validator_phone_mask', 
    'error_validator_phone_mask_with_phone', 
    'error_validator_phone_phone_number_with_country_selection', 
    'error_validator_integer', 'error_validator_multiple', 
    'error_validator_password', 'error_validator_required', 
    'error_validator_zipcode', 'error_validator_message', 
    'text_page_loading', 'error_ajax', 
    'text_changes_not_saved', 'text_data_changed', 
    'placing_order', 'order_was_not_placed', 
    'file_browser', 'browse', 'more', 
    'text_no_products_found', 'cookie_is_disabled', 
    'insert_image', 'image_url', 'loading', 
    'text_editing', 'save', 'cancel'
  )

Query time 0.00265

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "58.84"
    },
    "table": {
      "table_name": "lang",
      "access_type": "range",
      "possible_keys": [
        "PRIMARY"
      ],
      "key": "PRIMARY",
      "used_key_parts": [
        "lang_code",
        "name"
      ],
      "key_length": "392",
      "rows_examined_per_scan": 42,
      "rows_produced_per_join": 42,
      "filtered": "100.00",
      "cost_info": {
        "read_cost": "50.44",
        "eval_cost": "8.40",
        "prefix_cost": "58.84",
        "data_read_per_join": "16K"
      },
      "used_columns": [
        "lang_code",
        "name",
        "value"
      ],
      "attached_condition": "((`webmarco`.`lang`.`lang_code` = 'en') and (`webmarco`.`lang`.`name` in ('cannot_buy','no_products_selected','error_no_items_selected','delete_confirmation','text_out_of_stock','items','text_required_group_product','save','close','notice','warning','error','empty','text_are_you_sure_to_proceed','text_invalid_url','error_validator_email','error_validator_phone','error_validator_phone_mask','error_validator_phone_mask_with_phone','error_validator_phone_phone_number_with_country_selection','error_validator_integer','error_validator_multiple','error_validator_password','error_validator_required','error_validator_zipcode','error_validator_message','text_page_loading','error_ajax','text_changes_not_saved','text_data_changed','placing_order','order_was_not_placed','file_browser','browse','more','text_no_products_found','cookie_is_disabled','insert_image','image_url','loading','text_editing','save','cancel','cannot_buy','no_products_selected','error_no_items_selected','delete_confirmation','text_out_of_stock','items','text_required_group_product','save','close','notice','warning','error','empty','text_are_you_sure_to_proceed','text_invalid_url','error_validator_email','error_validator_phone','error_validator_phone_mask','error_validator_phone_mask_with_phone','error_validator_phone_phone_number_with_country_selection','error_validator_integer','error_validator_multiple','error_validator_password','error_validator_required','error_validator_zipcode','error_validator_message','text_page_loading','error_ajax','text_changes_not_saved','text_data_changed','placing_order','order_was_not_placed','file_browser','browse','more','text_no_products_found','cookie_is_disabled','insert_image','image_url','loading','text_editing','save','cancel')))"
    }
  }
}