Perhaps you should try some spelling variations:
"coder coder modes propagation program" » "coder coder modes propagation problems" (Expand search), "coder coder modes propagation diagrams" (Expand search), "coder coder modes propagation from" (Expand search), "coder coder models propagation program" (Expand search), "coder coder mode propagation program" (Expand search), "coder coder model propagation program" (Expand search), "coder decoder modes propagation program" (Expand search), "code code modes propagation program" (Expand search), "decoder codec modes propagation program" (Expand search), "coder order modes propagation program" (Expand search), "coder decoder models propagation program" (Expand search), "coder decoder model propagation program" (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 coder modes propagation program") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder modes propagation program\") OR (\"_ python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder modes propagation program ) OR ( _ python python python programming ))*.