Do this through the "Find..." dialog in the Finder:
1) Click on the "More Options" button.
2) Select the first criterion you want to search and check "all at once".
3) Click the Find button.
4) After all the files meeting the first criterion are found and
selected, choose "Find, More Options", enter the second criteria, and
select "Search: the selected items".
5) Click the Find button.
Only those items that meet both criteria remain selected. You can repeat
this procedure to narrow the search as much as you need.
If you get a message that not all items meeting the criteria could be
displayed at once, the most likely reason is that some items are at the
desktop level and could not be displayed in the window. Try moving those
items from the desktop into the root level window of the volume. The other
possible reason for the message is that you have run out of memory due to
too large a search result. Try quitting any open applications to free up
more memory.