Check the helpfiles for your Version of security Analytics:
Version 7.x helpfiles:
https://origin-symwisedownload.symantec.com//resources/webguides/security_analytics/ENG/80/Content/ENG/Analytics/metadata/_metadata_settings.htm
Version 8.x helpfiles:
https://origin-symwisedownload.symantec.com//resources/webguides/security_analytics/ENG/80/Content/ENG/Analytics/metadata/_metadata_settings.htm
Note that these attributes are not identical to the advanced searches that you can add when you are working with the reports or extractions pages. Use the search term "Advanced-Filter Attributes" when you are on the helpfiles' pages.