Perhaps you should try some spelling variations:
"using computational _ precoder program" » "and computational _ precoder program" (Expand search), "using computational _ proder program" (Expand search), "using computational _ recovery program" (Expand search), "using computational _ precoce programa" (Expand search)
"using codigo python python programming" » "using codigo pythons python programming" (Expand search), "using codigo piton python programming" (Expand search), "using codigo pitons python programming" (Expand search), "using indigo python python programming" (Expand search), "using coding python python programming" (Expand search), "using codium 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: (("using computational _ precoder program") OR ("using codigo python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"using computational _ precoder program\") OR (\"using codigo python python programming\"))*".
• Removing quotes may allow a broader search: (( using computational _ precoder program ) OR ( using codigo python python programming ))*.