SELECT 
  lang.name, 
  lang.value 
FROM 
  cscart_language_values lang 
WHERE 
  lang.lang_code = 'fr' 
  AND lang.name IN (
    'contact_information', 'text_multiprofile_notice', 
    'billing_address', 'shipping_address', 
    'shipping_address', 'billing_address', 
    'revert', 'delete_my_account_description', 
    'delete_my_account', 'delete_my_account', 
    'delete_my_account', 'usergroup', 
    'status', 'action', 'active', 'available', 
    'join', 'declined', 'join', 'pending', 
    'cancel', 'contact_information', 
    'text_multiprofile_notice', 'billing_address', 
    'shipping_address', 'shipping_address', 
    'billing_address', 'revert', 'delete_my_account_description', 
    'delete_my_account', 'delete_my_account', 
    'delete_my_account', 'usergroup', 
    'status', 'action', 'active', 'available', 
    'join', 'declined', 'join', 'pending', 
    'cancel'
  )

Query time 0.00109

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "38.41"
    },
    "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": 16,
      "rows_produced_per_join": 16,
      "filtered": "100.00",
      "index_condition": "((`danishecarter_31jan`.`lang`.`lang_code` = 'fr') and (`danishecarter_31jan`.`lang`.`name` in ('contact_information','text_multiprofile_notice','billing_address','shipping_address','shipping_address','billing_address','revert','delete_my_account_description','delete_my_account','delete_my_account','delete_my_account','usergroup','status','action','active','available','join','declined','join','pending','cancel','contact_information','text_multiprofile_notice','billing_address','shipping_address','shipping_address','billing_address','revert','delete_my_account_description','delete_my_account','delete_my_account','delete_my_account','usergroup','status','action','active','available','join','declined','join','pending','cancel')))",
      "cost_info": {
        "read_cost": "35.21",
        "eval_cost": "3.20",
        "prefix_cost": "38.41",
        "data_read_per_join": "6K"
      },
      "used_columns": [
        "lang_code",
        "name",
        "value"
      ]
    }
  }
}