Get pages of type filtered by category

Hi, I am trying to list all pages of type that have category value set on them.

Code snippet looks like this

var search = _findClient.Search<NewsArticlePage>()
             .Filter(x => x.ChangedPublishedDate.BeforeNow())
             .FilterForVisitor()
             .OrderByDescending(x => x.ChangedPublishedDate);
if (currentBlock.PublishCategories?.Any() ?? false)
{
     search = search.MatchCategories(currentBlock.PublishCategories);
}
var result = search.GetContentResult().ToList();

This works fine till the moment new news article gets published. It gets indexed but it doesn't show in the result unless indexing jobs starts manually.

I know that GetContentResult caches and am wondering if there is either a way of invalidating cache during the published event or even better way of getting list of speciffic page type that still uses the latest cache after newly published event.