Many of our solutions use Solr as a search engine. We find that Solr can provide powerful and flexible search experiences, customizable through its configuration. In this case, we resolved an issue where very generic names of important pieces of content were making them harder to find.
When working with eZ Find fetches, you may want to return only a specific sub-set of data for each of the search results, rather than the whole content object.
You can do that by using the eZ Find 'search' fetch's 'fields_to_return' parameter.