You may search the results of a text query rather than re-searching the entire text database. This can help you identify the most useful results of a previously-performed query.
To do this, first make sure the text search results window is active by clicking on it. (If you have several text results windows open, select Net Search > Current Results to locate the desired window.)
Then, select Net Search > Search These Results to open a text query window. Enter the desired search criteria, and then click Search to search the current results.
When the search is complete, the text search results window will be displayed, showing a list of sequences that match your query.