Testing completion suggest in ElasticSearch

es_completion_suggest.sh

#!/bin/bash
# ========================================
# Testing completion suggest in ElasticSearch
# ========================================

curl -X DELETE localhost:9200/hotels
curl -X PUT localhost:9200/hotels -d '
{
  "mappings": {
    "hotel" : {
      "properties" : {
        "name" : { "type" : "string" },
        "city" : { "type" : "string" },
        "name_suggest" : {
          "type" :     "completion",
          "payloads" : true
        }
      }
    }
  }
}'

curl -X PUT localhost:9200/hotels/hotel/3 -d '
{
  "name" :         "Courtyard by Marriot Munich City",
  "city" :         "Munich",
  "name_suggest" : {
    "input" :      [
      "Courtyard by Marriot Munich City",
      "Marriot Munich City",
      "General Munich Hotel"
    ],
    "output":      "Hotel Marriot",
    "weight":      15,
    "payload":     { "hotel_id": 3}
  }
}'

curl -X POST "http://localhost:9200/hotels/_refresh"

# Some debug info
echo
echo "name_suggest input: { \"Courtyard by Marriot Munich City\", \"Marriot Munich City\", \"General Munich Hotel\" }"

echo
echo "# Found using first letters of first words - M, C or G"
curl -X POST "http://localhost:9200/hotels/_suggest?pretty=true" -d '
{
  "hotels": {
    "text": "M",
    "completion": {
      "field": "name_suggest"
    }
  }
}'

echo
echo "# Can't find using Mu, Mun, Munich, City, General, so on"
curl -X POST "http://localhost:9200/hotels/_suggest?pretty=true" -d '
{
  "hotels": {
    "text": "Munich",
    "completion": {
      "field": "name_suggest"
    }
  }
}'

echo

# Found using first letters of first words - M, C or G
# Can't find using Mu, Mun, Munich, City, General, so on
# anyone know why? 
# Thank you