Not getting the results you expected in emailed reports is probably one of two things you can change for the next report you order; either the vernacular is off, or there simply aren’t any results to be had for your monitored term.
Take the first: If you’re trying to monitor something like how much tweens love Justin Bieber — is it better to search for OMG, QT, #nxtmrsbieber, or something else? Remember the immortal words of Elmer Fudd: To hunt wabbit — think like a wabbit. That may take some time and refinement.
Secondly, there might not be results to be had. If it’s an obscure topic, or there isn’t a lot of chatter, your results will indicate that. Remember, we don’t make the tweets, we just make reports.