The Previous Searches list displays a history of result sets numbered R1, R2, R3, etc. from most recent (R3) to oldest (R1). Result sets give a quick overview of the search expression, showing the type of search performed, your search terms and any search limiters, and the total number of results found across all tabs.
A Revise link is available for each result set. Click this link to return to the search input page used to create the search. Your search criteria will re-display, allowing you to make changes.
Result sets can be used in Advanced Search. Select the "Previous Searches (ps) *" index and then click the Browse link that appears. You will be able to choose the results set(s) you want to search. Results sets can also be used when you build your own search expressions using CCL Advanced Search (where available).