Perhaps you should try some spelling variations:
"coder equation modeling sample of" » "coder equation modeling example of" (Expand search), "coder equation modelling example of" (Expand search), "coder equation modeling complex of" (Expand search), "order equation modeling sample of" (Expand search), "model equation modeling sample of" (Expand search), "tozer equation modeling sample of" (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: (("coder equation modeling sample of") OR ("using coding python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder equation modeling sample of\") OR (\"using coding python python programming\"))*".
• Removing quotes may allow a broader search: (( coder equation modeling sample of ) OR ( using coding python python programming ))*.