Perhaps you should try some spelling variations:
"an introduction coding decoding program" » "an introduction crossing decoding program" (Expand search), "an introduction reading decoding program" (Expand search), "an introduction during decoding program" (Expand search), "an introduction coding welcoming program" (Expand search), "an introduction coding deworming program" (Expand search), "an introduction coding feeding program" (Expand search), "an introduction encoding decoding program" (Expand search), "an introduction joint decoding program" (Expand search)
"variance functions from working program" » "covariance functions from working program" (Expand search), "variable functions from working program" (Expand search), "covariance function from working program" (Expand search), "variance functions from walking program" (Expand search), "variance functions from deworming program" (Expand search), "variance functions from stocking program" (Expand search), "variance functions from work program" (Expand search), "variance functions co working program" (Expand search), "variance functions team working program" (Expand search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("variance functions from working program") OR ("an introduction coding decoding program"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"variance functions from working program\") OR (\"an introduction coding decoding program\"))".
• Removing quotes may allow a broader search: (( variance functions from working program ) OR ( an introduction coding decoding program )).
• Adding a wildcard symbol may retrieve word variants: (("variance functions from working program") OR ("an introduction coding decoding program"))*.