Query with match by multiple fields

I'm pretty new to elastic search and would like to write a query that is concerned about two fields. I mean the content of the fields contains the specified substring. I have a document containing fields, like this:

name: n
tag: t

I tried this:

/_search -d '
{
    "query": {
        "match": {
             "name": "n",
             "tag": "t"
        }
    }
}

But the query results in the following error:

[match] query parsed in simplified form, with direct field name, but included more options than just the field name, possibly use its 'options' form, with 'query' element?

Is there a way to do this in elasticsearch?

You need two match queries enclosed in a bool/must query, like this:

{
  "query": {
    "bool": {
      "must": [
        {
          "match": {
            "name": "n"
          }
        },
        {
          "match": {
            "tag": "t"
          }
        }
      ]
    }
  }
}