Elasticsearch simple contains search using Java API - elasticsearch

Question

I'm trying to play with Java API of Elastic Search and struggling to find the right querybuilder to use.
My JSON has got fields like: name, description etc.
My JSON (One sample):
{
"_id" : { "$oid" : "5160988c96cc620a5db6dafa" },
"name" : "Spinach Strata Recipe",
"ingredients" : "8 ounces day-old crusty bread, such as pain au levain, large dice (about 6 cups)\n2 cups coarsely chopped baby spinach leaves (about 3 1/2 ounces)\n3/4 cup crumbled provolone cheese (about 3 3/4 ounces)\n2 tablespoons extra-virgin olive oil, plus more for coating the pan\n1 tablespoon finely grated lemon zest (from about 1 medium lemon)\n2 teaspoons Dijon mustard\n1/8teaspoon kosher salt\n1/2 teaspoon freshly ground black pepper\n6 ex large eggs\n2 cups whole milk\n1/2 teaspoon finely chopped fresh oregano leaves",
"url" : "http://www.chow.com/users/recipes/29915-spinach-strata",
"image" : null,
"ts" : { "$date" : 1365285004038 },
"cookTime" : null,
"source" : "chow",
"recipeYield" : "6 servings",
"prepTime" : null,
"description" : "Aside from being comforting and filling, stratas are really easy to make. Whisked eggs and milk are poured over bread and your favorite fillings, then everything..."
}
This is how I"m indexing:
Settings settings = ImmutableSettings.settingsBuilder().put("cluster.name", "elasticsearch_sai").build();
final TransportClient client = new TransportClient(settings);
Client _client = client.addTransportAddress(new InetSocketTransportAddress("localhost", Integer.parseInt("9300")));
reader.lines().limit(10000).forEach(json -> {
IndexResponse response = _client.prepareIndex("openrecipe", "recipe")
.setSource(json)
.execute()
.actionGet();
System.out.println("Indexed: "+response.getId()+" --> "+response.isCreated());
});
_client.admin().indices().prepareRefresh().execute().actionGet() ;
I want to search all the documents which has got the word sandwich in the name field (case insensitive).
But this doesn't work:
SearchResponse response = _client.prepareSearch("openrecipe")
.setTypes("recipe")
.setFrom(0).setSize(60)
.setSearchType(SearchType.QUERY_AND_FETCH)
.setQuery(QueryBuilders.termQuery("name", "sandwich"))
.execute()
.actionGet();