SELECT 
  object_id, 
  name 
FROM 
  cscart_seo_names 
WHERE 
  name IN (
    'services-en', 'holiday-travel', 
    'hotel-booking-en'
  ) 
  AND type = 'c' 
  AND lang_code = 'el'

Query time 0.00040

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "2.43"
    },
    "table": {
      "table_name": "cscart_seo_names",
      "access_type": "range",
      "possible_keys": [
        "name",
        "type"
      ],
      "key": "name",
      "used_key_parts": [
        "name",
        "lang_code"
      ],
      "key_length": "758",
      "rows_examined_per_scan": 3,
      "rows_produced_per_join": 0,
      "filtered": "10.00",
      "using_index": true,
      "cost_info": {
        "read_cost": "2.37",
        "eval_cost": "0.06",
        "prefix_cost": "2.43",
        "data_read_per_join": "520"
      },
      "used_columns": [
        "name",
        "object_id",
        "type",
        "lang_code"
      ],
      "attached_condition": "((`webmarco`.`cscart_seo_names`.`name` in ('services-en','holiday-travel','hotel-booking-en')) and (`webmarco`.`cscart_seo_names`.`type` = 'c') and (`webmarco`.`cscart_seo_names`.`lang_code` = 'el'))"
    }
  }
}