Perhaps you should try some spelling variations:
"and introduction _ computers programming" » "and introduction _ computer programming" (Expand search), "and introduction _ computer program" (Expand search), "and introduction _ computer programs" (Expand search), "an introduction _ computers programming" (Expand search)
"advanced path python computer programme" » "advanced path python computer programmers" (Expand search), "advanced path python computer program" (Expand search), "advanced path python computer programs" (Expand search), "advanced potato python computer programme" (Expand search), "advanced age python computer programme" (Expand search), "advanced and python computer programme" (Expand search), "advanced with python computer programme" (Expand search), "advanced gate python computer programme" (Expand search), "advanced pytm python computer programme" (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: "((\"and introduction _ computers programming\") OR (\"advanced path python computer programme\"))~".
• Removing quotes may allow a broader search: (( and introduction _ computers programming ) OR ( advanced path python computer programme ))~.
• Adding a wildcard symbol may retrieve word variants: (("and introduction _ computers programming") OR ("advanced path python computer programme"))*.