Some months ago Westlaw began adding unpublished orders to the Nevada Cases database. These orders are not citeable in Nevada courts per SCR 123.
If you are searching NV-CS and wish only to retrieve published opinions, use the following search string to exclude unpublihsed orders from your result:
search terms%ci(unpublished) or search terms AND NOT ci(unpublished)
Be sure to use the "and not" operator at the end of your search. NOTE - this only works when using Terms & Connectors.