Perhaps you should try some spelling variations:
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"covariance functions and coding program" » "covariance functions and cloning program" (Expand search), "covariance functions and loading program" (Expand search), "covariance functions and cooling programs" (Expand search), "covariance function and coding program" (Expand search), "covariance functional and coding program" (Expand search), "covariance functions and coping program" (Expand search), "covariance functions and cooling program" (Expand search), "covariance functions and cooking program" (Expand search)

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