Perhaps you should try some spelling variations:
"coder coder and unmodified program" » "coder coder and modified program" (Expand search), "coder coder and modifies program" (Expand search), "coder coder and unified program" (Expand search), "coder decoder and unmodified program" (Expand search), "code code and unmodified program" (Expand search), "decoder codec and unmodified program" (Expand search), "coder code and unmodified program" (Expand search), "coder codes and unmodified program" (Expand search), "coder poder and unmodified 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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder and unmodified program\") OR (\"_ python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coder and unmodified program ) OR ( _ python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coder and unmodified program") OR ("_ python python python programming"))*.