Perhaps you should try some spelling variations:
"coder implementation on problem problem" » "code implementation on problem problem" (Expand search), "decoder implementation on problem problem" (Expand search), "model implementation on problem problem" (Expand search), "coder implementation of problem problem" (Expand search), "coder implementation in problem problem" (Expand search), "coder implementation and problem problem" (Expand search), "coder implementation on problem problema" (Expand search), "coder implementation on problems problem" (Expand search), "coder implementation on problemas problem" (Expand search)
"python coding python python programming" » "action coding python python programming" (Expand search), "python code python python programming" (Expand search), "python codigo python python programming" (Expand search), "python codigos python python programming" (Expand search), "python using python python programming" (Expand search), "python coding pythons python programming" (Expand search), "python coding piton python programming" (Expand search), "python coding pitons 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 implementation on problem problem") OR ("python coding python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder implementation on problem problem\") OR (\"python coding python python programming\"))".
• Removing quotes may allow a broader search: (( coder implementation on problem problem ) OR ( python coding python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder implementation on problem problem") OR ("python coding python python programming"))*.