I would do the following check to validate the content search
* Ensure that the Scheduler Index Server is started.
* In Data Catalog, make sure that green checkmark under the Configured column for Server Name “localhost” because it indicates that the Index was added successfully.
* If Index is not created, then ensure that “Index Name” provided is the same Index Name given in the Exporters section of the Scheduler Index.
Once the configured column is enabled, I was able to see the “Configure search snippets” option. This option helps you to select the fields to be shown in the search results summary and its order.
For more information, you can have a look at [Search Configuration](https://community.denodo.com/docs/html/browse/7.0/vdp/data_catalog/administration/search_configuration/search_configuration#search-configuration) section of the Data Catalog Guide.
Hope this helps!