Perhaps you should try some spelling variations:
"python python tool python programming" » "pythons python tool python programming" (Expand search), "piton python tool python programming" (Expand search), "pitons python tool python programming" (Expand search), "python python tools python programming" (Expand search), "python python to python programming" (Expand search), "python python tutor python programming" (Expand search)
"coder coding using linear programming" » "modern coding using linear programming" (Expand search), "color coding using linear programming" (Expand search), "odor coding using linear programming" (Expand search), "coder loading using linear programming" (Expand search), "coder modeling using linear programming" (Expand search), "coder drying using linear 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 coding using linear programming") OR ("python python tool python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coding using linear programming\") OR (\"python python tool python programming\"))*".
• Removing quotes may allow a broader search: (( coder coding using linear programming ) OR ( python python tool python programming ))*.