One of our users at LSST Corporation has been having issues with the quick search where the results don't seem to be consistent. The user has typed in words that are either in the Summary field or Description field of an issue. The search feature finds some issues that have the word in the Summary or Description but not all cases. I've run tests since this was reported, and have verified this. What does the JIRA Quick Search look at when it runs a search query?