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 coder coding rate scale" » "coder modern coding rate scale" (Expand search), "coder color coding rate scale" (Expand search), "coder odor coding rate scale" (Expand search), "coder decoder coding rate scale" (Expand search), "code code coding rate scale" (Expand search), "decoder codec coding rate scale" (Expand search), "coder coder coping rate scale" (Expand search), "coder coder cooling rate scale" (Expand search), "coder coder loading rate scale" (Expand search), "coder coder coding range scale" (Expand search), "coder coder coding state scale" (Expand search), "coder coder coding ratio scale" (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 coder coding rate scale") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder coding rate scale\") OR (\"_ python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder coding rate scale ) OR ( _ python python python programming ))*.