Perhaps you should try some spelling variations:
"coder and coverage structured programming" » "coder and coverage structured programs" (Expand search), "coder and coverage structure programming" (Expand search), "coder and coverage structures programming" (Expand search), "coder and average structure programming" (Expand search), "coder and cover structured programming" (Expand search), "code and coverage structured programming" (Expand search), "codes and coverage structured programming" (Expand search), "poder and coverage structured programming" (Expand search)
"_ python python python programming" » "_ pythons python python programming" (Expand search), "_ piton python python programming" (Expand search), "_ pitons python python 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: (("coder and coverage structured programming") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder and coverage structured programming\") OR (\"_ python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder and coverage structured programming ) OR ( _ python python python programming ))*.