Perhaps you should try some spelling variations:
"coder coder time walking problem" » "coder coder time walking problems" (Expand search), "coder coder time packing problem" (Expand search), "coder coder time making problem" (Expand search), "coder coder time warping problem" (Expand search), "coder coder the walking problem" (Expand search), "coder coder primer walking problem" (Expand search), "coder decoder time walking problem" (Expand search), "code code time walking problem" (Expand search), "decoder codec time walking problem" (Expand search), "coder cover time walking problem" (Expand search), "coder modern time walking problem" (Expand search), "coder over time walking 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 time walking problem") OR ("monty python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder time walking problem\") OR (\"monty python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder time walking problem ) OR ( monty python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder time walking problem") OR ("monty python python python programming"))*.