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 and value problems" » "coder decoder and value problems" (Expand search), "code code and value problems" (Expand search), "decoder codec and value problems" (Expand search), "coder code and value problems" (Expand search), "coder codes and value problems" (Expand search), "coder poder and value problems" (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 and value problems") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder and value problems\") OR (\"_ python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder and value problems ) OR ( _ python python python programming ))*.