Perhaps you should try some spelling variations:
"coder implementation in matching problem" » "code implementation in matching problem" (Expand search), "decoder implementation in matching problem" (Expand search), "model implementation in matching problem" (Expand search), "coder implementation and matching problem" (Expand search), "coder implementation of matching problem" (Expand search), "coder implementation in packing problem" (Expand search), "coder implementation in teaching problem" (Expand search), "coder implementation in cutting problem" (Expand search), "coder implementation on matching problem" (Expand search), "coder implementation non matching 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 in matching problem") OR ("python coding python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder implementation in matching problem\") OR (\"python coding python python programming\"))*".
• Removing quotes may allow a broader search: (( coder implementation in matching problem ) OR ( python coding python python programming ))*.