Perhaps you should try some spelling variations:
"and duplication using subsampling program" » "and duplication using sampling program" (Expand search), "and application using subsampling program" (Expand search), "and replication using subsampling program" (Expand search), "and applications using subsampling program" (Expand search), "and duplication and subsampling program" (Expand search), "and duplications using subsampling program" (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: "((\"and duplication using subsampling program\") OR (\"using coding python python programming\"))~".
• Removing quotes may allow a broader search: (( and duplication using subsampling program ) OR ( using coding python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("and duplication using subsampling program") OR ("using coding python python programming"))*.