SELECT 
  lang.name, 
  lang.value 
FROM 
  cscart_language_values lang 
WHERE 
  lang.lang_code = 'en' 
  AND lang.name IN (
    'erp_delivery.address_search_no_results', 
    'erp_delivery.address_search_searching', 
    'erp_delivery.old_address_mode_new', 
    'erp_delivery.old_address_mode_old', 
    'erp_delivery.old_address_province', 
    'erp_delivery.old_address_district', 
    'erp_delivery.old_address_ward', 
    'erp_delivery.old_address_select_province', 
    'erp_delivery.old_address_select_district', 
    'erp_delivery.old_address_select_ward', 
    'erp_delivery.old_address_select_new_ward', 
    'erp_delivery.old_address_split_hint', 
    'erp_delivery.old_address_new_address_preview', 
    'erp_delivery.old_address_mapping_not_found', 
    'erp_delivery.address_search_no_results', 
    'erp_delivery.address_search_searching', 
    'erp_delivery.old_address_mode_new', 
    'erp_delivery.old_address_mode_old', 
    'erp_delivery.old_address_province', 
    'erp_delivery.old_address_district', 
    'erp_delivery.old_address_ward', 
    'erp_delivery.old_address_select_province', 
    'erp_delivery.old_address_select_district', 
    'erp_delivery.old_address_select_ward', 
    'erp_delivery.old_address_select_new_ward', 
    'erp_delivery.old_address_split_hint', 
    'erp_delivery.old_address_new_address_preview', 
    'erp_delivery.old_address_mapping_not_found'
  )

Query time 0.00045

JSON explain

{
  "query_block": {
    "select_id": 1,
    "nested_loop": [
      {
        "table": {
          "table_name": "lang",
          "access_type": "range",
          "possible_keys": ["PRIMARY"],
          "key": "PRIMARY",
          "key_length": "392",
          "used_key_parts": ["lang_code", "name"],
          "rows": 14,
          "filtered": 100,
          "index_condition": "lang.lang_code = 'en' and lang.`name` in ('erp_delivery.address_search_no_results','erp_delivery.address_search_searching','erp_delivery.old_address_mode_new','erp_delivery.old_address_mode_old','erp_delivery.old_address_province','erp_delivery.old_address_district','erp_delivery.old_address_ward','erp_delivery.old_address_select_province','erp_delivery.old_address_select_district','erp_delivery.old_address_select_ward','erp_delivery.old_address_select_new_ward','erp_delivery.old_address_split_hint','erp_delivery.old_address_new_address_preview','erp_delivery.old_address_mapping_not_found','erp_delivery.address_search_no_results','erp_delivery.address_search_searching','erp_delivery.old_address_mode_new','erp_delivery.old_address_mode_old','erp_delivery.old_address_province','erp_delivery.old_address_district','erp_delivery.old_address_ward','erp_delivery.old_address_select_province','erp_delivery.old_address_select_district','erp_delivery.old_address_select_ward','erp_delivery.old_address_select_new_ward','erp_delivery.old_address_split_hint','erp_delivery.old_address_new_address_preview','erp_delivery.old_address_mapping_not_found')"
        }
      }
    ]
  }
}