Perhaps you should try some spelling variations:
"sampling using python python programming" » "samples using python python programming" (Expand search), "sampling in python python programming" (Expand search), "sampling unit python python programming" (Expand search), "sampling using pythons python programming" (Expand search), "sampling using piton python programming" (Expand search), "sampling using pitons python programming" (Expand search), "sampling usando python python programming" (Expand search)
"coder coding python _ programming" » "coder codigo python _ programming" (Expand search), "coder codigos python _ programming" (Expand search), "coder modeling vpython _ programming" (Expand search), "modern coding python _ programming" (Expand search), "color coding python _ programming" (Expand search), "odor coding 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 coding python _ programming\") OR (\"sampling using python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coding python _ programming ) OR ( sampling using python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coding python _ programming") OR ("sampling using python python programming"))*.