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