Perhaps you should try some spelling variations:
"coder coder precoding octave programa" » "coder coder precoding scheme programa" (Expand search), "coder coherent precoding octave programa" (Expand search), "coder linear precoding octave programa" (Expand search), "coder coder precoding docente programa" (Expand search), "coder decoder precoding octave programa" (Expand search), "code code precoding octave programa" (Expand search), "decoder codec precoding octave programa" (Expand search)
"on python python python programming" » "on pythons python python programming" (Expand search), "on piton python python programming" (Expand search), "on pitons python python programming" (Expand search), "in python pythin python programming" (Expand search), "of python pythof python programming" (Expand search), "_ python pyth_ 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 precoding octave programa") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder precoding octave programa\") OR (\"on python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder precoding octave programa ) OR ( on python python python programming ))*.