Perhaps you should try some spelling variations:
"visual representation _ precoder program" » "social representation _ precoder program" (Expand search), "political representation _ precoder program" (Expand search), "visual representation _ proder program" (Expand search), "visual representation _ recovery program" (Expand search), "visual representation _ precoce programa" (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.

• Performing a fuzzy search may retrieve terms with similar spellings: (("visual representation _ precoder program") OR ("using coding python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"visual representation _ precoder program\") OR (\"using coding python python programming\"))".
• Removing quotes may allow a broader search: (( visual representation _ precoder program ) OR ( using coding python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("visual representation _ precoder program") OR ("using coding python python programming"))*.