Perhaps you should try some spelling variations:
"functional representation _ precoder program" » "functions representation _ precoder program" (Expand search), "fractional representation _ precoder program" (Expand search), "fictional representation _ precoder program" (Expand search), "functional representation _ proder program" (Expand search), "functional representation _ recovery program" (Expand search), "functional 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: (("functional representation _ precoder program") OR ("using coding python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"functional representation _ precoder program\") OR (\"using coding python python programming\"))".
• Removing quotes may allow a broader search: (( functional representation _ precoder program ) OR ( using coding python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("functional representation _ precoder program") OR ("using coding python python programming"))*.