Perhaps you should try some spelling variations:
"and introduction _ computers programming" » "and introduction _ computer program" (Expand search), "and introduction _ computer programs" (Expand search), "an introduction _ computers 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: (("and introduction _ computers programming") OR ("advanced python python computer programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"and introduction _ computers programming\") OR (\"advanced python python computer programming\"))".
• Removing quotes may allow a broader search: (( and introduction _ computers programming ) OR ( advanced python python computer programming )).
• Adding a wildcard symbol may retrieve word variants: (("and introduction _ computers programming") OR ("advanced python python computer programming"))*.