Perhaps you should try some spelling variations:
"variable and its precoder program" » "variable and its proder program" (Expand search), "variable and its recovery program" (Expand search), "variable and its precoce programa" (Expand search), "variables and its precoder program" (Expand search), "variable _ its precoder program" (Expand search), "variable and to precoder program" (Expand search), "variable and mimo precoder program" (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: "((\"variable and its precoder program\") OR (\"using coding python python programming\"))~".
• Removing quotes may allow a broader search: (( variable and its precoder program ) OR ( using coding python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("variable and its precoder program") OR ("using coding python python programming"))*.