To find
samples that have been submitted to only a single WildFire cloud
(and no other WildFire clouds), set up a search for a WildFire cloud.
Then, add another search condition excluding samples submitted to
the other clouds from the search results. For example, to search
for samples that users submitted to the WildFire global cloud only,
search with the condition combined
with the condition for each of the other
WildFire clouds.