FilterBuilder filterBuilder = FilterBuilders.andFilter(  
	FilterBuilders.existsFilter("title").filterName("exist"),  
	FilterBuilders.termFilter("title", "elastic")  
);  

SearchResponse response = client.prepareSearch("netkiller")  
	.setPostFilter(filterBuilder)  
	.get();  
		
		

			
.setPostFilter(QueryBuilders.termQuery("site_id", siteId))
			
			

			
QueryBuilders.rangeQuery("age").from(12).to(18)