Perhaps you should try some spelling variations:
"coder detection using open problem" » "code detection using open problem" (Expand search), "border detection using open problem" (Expand search), "corner detection using open problem" (Expand search), "coder detection using open problems" (Expand search), "coder detection using on problem" (Expand search), "coder detection using robin problem" (Expand search)
"using coding python python programming" » "using codigo python python programming" (Expand search), "using codigos python python programming" (Expand search), "using using python python programming" (Expand search), "using coding pythons python programming" (Expand search), "using coding piton python programming" (Expand search), "using coding pitons python programming" (Expand search), "using coping python python programming" (Expand search), "using coating python python programming" (Expand search), "using cooking python python programming" (Expand search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder detection using open problem\") OR (\"using coding python python programming\"))~".
• Removing quotes may allow a broader search: (( coder detection using open problem ) OR ( using coding python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder detection using open problem") OR ("using coding python python programming"))*.