Perhaps you should try some spelling variations:
"coder coder _ nesting problems" » "coder coder _ routing problems" (Expand search), "coder coder _ learning problems" (Expand search), "coder coder _ routing problem" (Expand search), "coder decoder _ nesting problems" (Expand search), "code code _ nesting problems" (Expand search), "decoder codec _ nesting problems" (Expand search)
"monty python python python programming" » "monty pythons python python programming" (Expand search), "monty piton python python programming" (Expand search), "monty 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 _ nesting problems") OR ("monty python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder _ nesting problems\") OR (\"monty python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder _ nesting problems ) OR ( monty python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder _ nesting problems") OR ("monty python python python programming"))*.