Your search +path:tr +path:. +path:v +path:. +path:histogramset +path:. +path:groupings +path:. +path:histogram_name +path:. +path:key did not match any files.
Suggestions:

• Make sure all terms are spelled correctly.
• Try different keywords.
• Try more general keywords.
• Use 'wil*' cards if you are looking for partial match.