Perl Elastic query broken after upgrade from 2.4 to 5

As the title suggests, I am upgrading to ES5. My original ES query looked like:

my $response = $elastic->do_request_new( 
        {
            query       => {
                filtered    => {
                    filter  => {
                        or  => [
                            { term  => { _type  => { value => "some_val1" } } },
                            { term  => { _type  => { value => "some_val2" } } },
                        ]
                    },
                    query   => {
                        query_string    => {
                            query   => $qstring,
                            rewrite => "scoring_boolean", 
                            analyze_wildcard => "true",
                        }
                    }
                }
            },

            sort    => [ qw(_score) ],
            size => 50,
        },
    ); 

My updated looks like:

my $response = $elastic->do_request_new(
    {
        query       => {
            bool    => {
                should  => [
                    { term  => { _type  => { value => "some_val1" } } },
                    { term  => { _type  => { value => "some_val2" } } },
                ],
                must   => {
                    query_string    => {
                        query   => $qstring,
                        rewrite => "scoring_boolean", 
                        analyze_wildcard => "true",
                    }
                }
            }
        },
        sort    => [ qw(_score) ],
        size => 50,
    },
); 

However, upon searching for exact strings in my elastic database, I am returning zero results:

{
  "took" : 3,
  "timed_out" : false,
  "_shards" : {
    "total" : 5,
    "successful" : 5,
    "failed" : 0
  },
  "hits" : {
    "total" : 0,
    "max_score" : null,
    "hits" : [ ]
  }
}

Any ideas about what might be happening? My guess is I have my query structure wrong. Thanks!