Perhaps you should try some spelling variations:
"coder functions on duplication problem" » "coder functions on lubrication problems" (Expand search), "coder functions on equalization problem" (Expand search), "coder functions on location problem" (Expand search), "power functions on duplication problem" (Expand search), "order functions on duplication problem" (Expand search), "colour functions on duplication problem" (Expand search), "coder functions non duplication problem" (Expand search), "coder functions upon duplication problem" (Expand search), "coder functions and duplication problem" (Expand search), "coder functions of duplication problem" (Expand search), "coder functions _ duplication 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 functions on duplication problem\") OR (\"using coding python python programming\"))~".
• Removing quotes may allow a broader search: (( coder functions on duplication problem ) OR ( using coding python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder functions on duplication problem") OR ("using coding python python programming"))*.