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