Perhaps you should try some spelling variations:
"covariance function from coding program" » "covariance functions from coding program" (Expand search), "ovarian function from coding program" (Expand search), "covariance function from cloning program" (Expand search), "covariance function from loading program" (Expand search), "covariance function from cooling programs" (Expand search), "covariance function from decoding program" (Expand search), "covariance function from cooking program" (Expand search), "covariance function from codium program" (Expand search)
"advanced age coding decoding program" » "advanced age coding welcoming program" (Expand search), "advanced age coding deworming program" (Expand search), "advanced age coding feeding program" (Expand search), "advanced age encoding decoding program" (Expand search), "advanced age reading decoding program" (Expand search), "advanced age joint decoding program" (Expand search), "advanced age coding decloning program" (Expand search), "advanced age coding deloading program" (Expand search), "advanced age coding decooling programs" (Expand search), "advanced stage coding decoding program" (Expand search), "advanced image coding decoding program" (Expand search), "advanced edge coding decoding program" (Expand search), "advanced rate coding decoding program" (Expand search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"covariance function from coding program\") OR (\"advanced age coding decoding program\"))~".
• Removing quotes may allow a broader search: (( covariance function from coding program ) OR ( advanced age coding decoding program ))~.
• Adding a wildcard symbol may retrieve word variants: (("covariance function from coding program") OR ("advanced age coding decoding program"))*.