SELECT 
  object_id, 
  name 
FROM 
  cscart_seo_names 
WHERE 
  name IN (
    'medical-supplies-and-equipment', 
    'support-braces-and-splints'
  ) 
  AND type = 'c' 
  AND lang_code = 'en'

Query time 0.00072

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "1.48"
    },
    "table": {
      "table_name": "cscart_seo_names",
      "access_type": "range",
      "possible_keys": [
        "name",
        "type"
      ],
      "key": "type",
      "used_key_parts": [
        "name",
        "type",
        "lang_code"
      ],
      "key_length": "761",
      "rows_examined_per_scan": 2,
      "rows_produced_per_join": 2,
      "filtered": "100.00",
      "index_condition": "((`s2cart`.`cscart_seo_names`.`name` in ('medical-supplies-and-equipment','support-braces-and-splints')) and (`s2cart`.`cscart_seo_names`.`type` = 'c') and (`s2cart`.`cscart_seo_names`.`lang_code` = 'en'))",
      "cost_info": {
        "read_cost": "1.28",
        "eval_cost": "0.20",
        "prefix_cost": "1.48",
        "data_read_per_join": "3K"
      },
      "used_columns": [
        "name",
        "object_id",
        "type",
        "lang_code"
      ]
    }
  }
}