Perhaps you should try some spelling variations:
"using optimization methods precoder program" » "using optimization model precoder program" (Expand search), "time optimization methods precoder program" (Expand search), "using optimization methods proper program" (Expand search), "using optimization methods peer program" (Expand search), "using optimization methods power program" (Expand search), "using optimization methods proder program" (Expand search), "using optimization methods recovery program" (Expand search), "using optimization methods 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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"using optimization methods precoder program\") OR (\"using coding python python programming\"))~".
• Removing quotes may allow a broader search: (( using optimization methods precoder program ) OR ( using coding python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("using optimization methods precoder program") OR ("using coding python python programming"))*.