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