Perhaps you should try some spelling variations:
"variable change and precoder program" » "variable change and proder program" (Expand search), "variable change and recovery program" (Expand search), "variable change and precoce programa" (Expand search), "variables change and precoder program" (Expand search), "variable charge and precoder program" (Expand search), "variable charges and precoder program" (Expand search), "variable change and precore program" (Expand search), "variable change and decoder program" (Expand search), "variable change and precede 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.

• Performing a fuzzy search may retrieve terms with similar spellings: (("variable change and precoder program") OR ("using coding python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"variable change and precoder program\") OR (\"using coding python python programming\"))*".
• Removing quotes may allow a broader search: (( variable change and precoder program ) OR ( using coding python python programming ))*.