If the results you get from either a simple or compound search are too broad, Cumulus can help. The search method Find In Current Collection allows you to search through the set of records contained in the current collection, instead of the entire catalogs of the current collection, thereby reducing the number of records found.

If it helps, you might want to think of Narrow Current Collection as an and Boolean operator. That is, after your first search, you conduct another search with different search criteria, and the final results are the same as from the corresponding compound search using and. In the example above, the same final results were achieved with the compound search previously conducted.