Lucene Search is returning zero result

Hi,

We are facing some issue in below of our code, please help us asap.

As we are using below code in our application but its returning zero result.

Please help urgently asap.

CatalogEntrySearchCriteria criteria = new CatalogEntrySearchCriteria();

            criteria.SearchPhrase = "kitchen";

            SearchManager manager = new SearchManager(AppContext.Current.ApplicationName);

            SearchResults results = manager.Search(criteria);

Thanks

Om