Perhaps you should try some spelling variations:
"coder coder walking detection problem" » "coder coder marking detection problem" (Expand search), "coder coder hacking detection problem" (Expand search), "coder coder walking direction problem" (Expand search), "coder coder walking selection problem" (Expand search), "coder coder walking prediction problem" (Expand search), "coder coder walking collection problem" (Expand search), "coder water walking detection problem" (Expand search), "coder after walking detection problem" (Expand search), "coder or walking detection problem" (Expand search), "coder decoder walking detection problem" (Expand search), "code code walking detection problem" (Expand search), "decoder codec walking detection problem" (Expand search)
"in python python python programming" » "in pythons python python programming" (Expand search), "in piton python python programming" (Expand search), "in pitons python python programming" (Expand search), "_ python 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 walking detection problem") OR ("in python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder walking detection problem\") OR (\"in python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder walking detection problem ) OR ( in python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder walking detection problem") OR ("in python python python programming"))*.