When I try to search in my email all the contacts,subjects, or whatever I am searching for show up below the search box but when I select them it shows zero results when the messages are definitely there. It was not 100% before but now it finds very few, or no messages at all. I just had to install a new hard drive and backup from Time Machine so I suspect that may be part of the issue. I just updated to Mavericks when the new drive was installed, I was running Lion previously.
MacBook
Pro, Mac OS X (10.7.5)