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