In Eclipse, how can you search within a search result?

Question

"Long live the Unix Pipes".

Since I am working with Eclipse IDE, I would like to perform search within search results. Is that possible? How can I do that?

Ex:

Search for references of User (class). 
  > Search for validation in this result. 
    > Finally, search for specific pattern.

Answer 1

This is possible in Eclipse, well as far as the version I am using which is Eclipse Juno 4.2.2; I've used this extensively for impact analysis.

For example:

1. Search using "File Search" with criteria "employee"
2. The results will appear in the Tab "Search", assuming you are in the tree view (by default), click the root folder
3. Again, use the "File Search" this time using the 2nd criteria, for example "default" and making sure to click the Selected resources radio button

Effectively, this searches the keyword "default" from the previous search results produced by searching "employee".