SELECT 
  lang.name, 
  lang.value 
FROM 
  cscart_language_values lang 
WHERE 
  lang.lang_code = 'en' 
  AND lang.name IN (
    'exception_error', 'exception_title', 
    'access_denied_text', 'page_not_found_text', 
    'exception_error_code', 'access_denied', 
    'go_to_the_homepage', 'go_back', 
    'exception_error', 'exception_title', 
    'access_denied_text', 'page_not_found_text', 
    'exception_error_code', 'access_denied', 
    'go_to_the_homepage', 'go_back'
  )

Query time 0.00037

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "19.21"
    },
    "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": 8,
      "rows_produced_per_join": 8,
      "filtered": "100.00",
      "index_condition": "((`satishecarter_march_003`.`lang`.`lang_code` = 'en') and (`satishecarter_march_003`.`lang`.`name` in ('exception_error','exception_title','access_denied_text','page_not_found_text','exception_error_code','access_denied','go_to_the_homepage','go_back','exception_error','exception_title','access_denied_text','page_not_found_text','exception_error_code','access_denied','go_to_the_homepage','go_back')))",
      "cost_info": {
        "read_cost": "17.61",
        "eval_cost": "1.60",
        "prefix_cost": "19.21",
        "data_read_per_join": "3K"
      },
      "used_columns": [
        "lang_code",
        "name",
        "value"
      ]
    }
  }
}