Perhaps you should try some spelling variations:
"an introduction and computers programming" » "an introduction and computer program" (Expand search), "an introduction and computer programs" (Expand search), "an introduction to computers programming" (Expand search), "an introduction of computers programming" (Expand search), "an introduction and computer programming" (Expand search), "an introduction and computed programming" (Expand search), "an introduction and computing programming" (Expand search)
"advanced python python computer programming" » "advanced python python computer program" (Expand search), "advanced python python computer programs" (Expand search), "advanced method python computer programming" (Expand search), "advanced path python computer programming" (Expand search), "advanced symphony python computer programming" (Expand search), "advanced pythons python computer programming" (Expand search), "advanced piton python computer programming" (Expand search), "advanced pitons python computer programming" (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 and computers programming") OR ("advanced python python computer programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"an introduction and computers programming\") OR (\"advanced python python computer programming\"))*".
• Removing quotes may allow a broader search: (( an introduction and computers programming ) OR ( advanced python python computer programming ))*.