SELECT 
  cscart_product_descriptions.product_id, 
  cscart_product_descriptions.meta_keywords, 
  cscart_product_descriptions.meta_description, 
  cscart_product_descriptions.search_words, 
  cscart_product_descriptions.promo_text 
FROM 
  cscart_product_descriptions 
WHERE 
  cscart_product_descriptions.product_id IN (
    33523, 33522, 33521, 33520, 33519, 33518, 
    33517, 33516, 33515, 33514, 33513, 
    33512, 33511, 33510, 33509
  ) 
  AND cscart_product_descriptions.lang_code = 'en'

Query time 0.00066

Explain
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE cscart_product_descriptions range PRIMARY,product_id PRIMARY 9 15 Using where

Result

product_id meta_keywords meta_description search_words promo_text
33509
33510
33511
33512
33513
33514
33515
33516
33517
33518
33519
33520
33521
33522
33523