Query_string with wildcard

Elastic Stack Elasticsearch
2

you need to use a bool query.
bool is used to combine a few conditions together.
So your query will be something like (just high level pseudo code) -->

{
    "query": {
        "bool": {
            "must": [
                "bool": {
                    "should": [
					{"term": {"city": "Berlin"}}, 
					{"term": {"city": "Prague"}}
                    ]}, 
					{"wildcard": {"name": "john*"}}
                }
            ]
        }
    }

Here is a good example.
And another one