Perhaps you should try some spelling variations:
"improving rural performance metrics." » "improving rural performance contracts.", "improving rural performance measures.", "improving rural performance contract.", "improving pupil performance metrics.", "improving thermal performance metrics.", "improving overall performance metrics.", "improving urban performance metrics.", "improving social performance metrics."
"improving rural performance targets." » "improving pupil performance targets.", "improving thermal performance targets.", "improving overall performance targets.", "improving urban performance targets.", "improving social performance targets."

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