ElasticSerach and Grails

it is my first time to use elasticsearch grails plugin in my Grails2.5.1 application , when i'm trying to search for age=35 using elasticSearchService.search("${age:35}").searchResults or using domainName.search("${age:35}").searchResults the searchresults is empty although there is a record in the DB age is equal to 35. And is there any useful tutorial for using ElasticSearch with Grails.

This is a very specific Groovy/Grails question. You should ask the Grails plugin developer about how to use the plugin in Grails.