Perhaps you should try some spelling variations:
"improving global performance series." » "improving global performance studies.", "improving global performance size.", "improving total performance series.", "improving regional performance series.", "improving general performance series.", "improving fiscal performance series.", "improving growth performance series.", "providing global performance series."
"going global performance series." » "going global performance studies.", "going global performance size.", "going total performance series.", "going regional performance series.", "going general performance series.", "doing global performance series."

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• Performing a fuzzy search may retrieve terms with similar spellings: (("improving global performance series.") or ("going global performance series."))~.
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