I had a painful issue with some data I was working with in Tableau. What I wanted was a spreadsheet-like dashboard, which would allow the user to select those files with certain results. The trick was, I wanted them to be able to do both AND and OR selects with these results.
Tableau experts to the rescue! I think the end result is really neat:
(original post here: http://www.tableausoftware.com/support/forum/topic/how-do-i-quick-filter-multiple-result-combinations#comment-14893)