question about match_phrase

gistfile1.sh

echo -e "delete index..."
curl -XDELETE "http://192.168.72.24:5028/test"
echo -e "\ncreate index..."
curl -XPUT "http://192.168.72.24:5028/test" -d '
{
    "settings": {
        "index": {
            "number_of_shards": 5,
            "number_of_replicas": 0,
            "analysis": {   
                "analyzer": {
                    "fielda_index": {
                         "type": "custom",
                         "tokenizer": "standard",
                         "filter": [ "words_delimiter"]
                    },
                    "fielda_search": {
                         "type": "custom",
                         "tokenizer": "standard",
                         "filter": ["dot_delimiter"]
                    }
                },
                "filter": {
                    "dot_delimiter":
                    {
                        "type": "word_delimiter",
                        "generate_word_parts": true,
                        "generate_number_parts": true,
                        "split_on_case_change": false,
                        "preserve_original": true,
                        "split_on_numerics": true
                    },
                    "words_delimiter":
                    {
                        "type": "word_delimiter",
                        "generate_word_parts": true,
                        "generate_number_parts": true,
                        "split_on_case_change": true,
                        "preserve_original": true,
                        "split_on_numerics": true
                    }
                    
                }
            }
        }
    },
    "mappings": {
        "main": {
            "_source": {"enabled": true},
            "dynamic_date_formats": ["basic_date_time_no_millis"],
            "properties": {
                "name": { "type": "string", "index": "analyzed", "index_analyzer": "fielda_index", "search_analyzer": "fielda_search", "include_in_all": true}
            }
        }
    }
}
'
echo -e "\npush doc..."
curl -XPOST "http://192.168.72.24:5028/test/main" -d '{"name": "Canon PowerShot D500"}'
echo -e "\nsearch..."
sleep 2
curl -XPOST "http://192.168.72.24:5028/test/main/_search" -d '{"from": 0, "size": 100, "query":{"match_phrase": {"name":"Canon PowerShot D500"}}}'