Perhaps you should try some spelling variations:
"advancing computational python computer program" » "advanced computational python computer program" (Expand search), "applying computational python computer program" (Expand search), "teaching computational python computer program" (Expand search), "advancing computacional python computer program" (Expand search), "advancing computacional vpython computer program" (Expand search), "advancing computacionais python computer program" (Expand search)
"an introduction to pulling program" » "an introduction to culling program" (Expand search), "an introduction to spelling program" (Expand search), "an introduction to spelling programs" (Expand search), "an introduction the pulling program" (Expand search), "an introduction to selling 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: (("an introduction to pulling program") OR ("advancing computational python computer program"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"an introduction to pulling program\") OR (\"advancing computational python computer program\"))".
• Removing quotes may allow a broader search: (( an introduction to pulling program ) OR ( advancing computational python computer program )).
• Adding a wildcard symbol may retrieve word variants: (("an introduction to pulling program") OR ("advancing computational python computer program"))*.