You'll notice that, in the search results table, some column titles have grey arrows beside them.
You can use these titles to sort the results. For example, click the Date title to sort the results in date order. Click it again to sort them in reverse date order. The column on which the results are currently sorted has a black arrow beside it. The direction of the arrow reflects the order in which results are sorted.
To change the basis for sorting to a different column, simply click that column's title.
