We have introduced the feature favorites, making it easy for you to prioritize certain results for repeated search terms.
The feature mark as favorite will allow you to see some of the results from a particular search query always on the top of the list. If you want to mark a query as favorite simply click on the star sign next to each of the results in the list.
That will help you see that results query on top of the search results every time you search for that particular keyword.
In order to change this, just unmark the star button from your query. In that way this results will no longer appear on the top of your result list.
Hope this helps!