An alternative sorting option is sorting by the age of the results.
Sorting by Date
When a project is set to sort by date, Squirro will sort the result list by using the created_at field of each item i.e. the most recent documents are put first in the result list. The limitation of of sorting this way is that the most recent documents are often poor matches for the original query. See Combined Time and Relevance Sorting for details on trade-offs.
How to Configure
This setting can be defined either using your browser, when you create a new project, using the Advanced Options or by changing the value of time_relevance in common.ini, in the [ranking] section.