SearchBlox comes with Query term reports for each collection for a particular timeframe.
You can fetch customized details using the Query tab in the Reports section. The Query section provides a detailed report containing the total number of queries, average number of queries, rate of average queries, and the top 25 searches with results and without results. These details can even be obtained individually for each collection. The query details can also be filtered based on the report period.
The report can be exported to file, as well as printed, using the options above the table.