Perhaps you should try some spelling variations:
"coder coder in external problem" » "coder coder in external problems" (Expand search), "coder coder in internal problems" (Expand search), "coder coder in extremal problem" (Expand search), "coder decoder in external problem" (Expand search), "code code in external problem" (Expand search), "decoder codec in external problem" (Expand search), "coder coder an external problem" (Expand search), "coder coder and external problem" (Expand search), "coder code in external problem" (Expand search), "coder codes in external problem" (Expand search), "coder poder in external 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 in external problem") OR ("monty python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder in external problem\") OR (\"monty python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder in external problem ) OR ( monty python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder in external problem") OR ("monty python python python programming"))*.