Perhaps you should try some spelling variations:
"using computational code variable probit" » "and computational code variable probit" (Expand search), "using computational model variable probit" (Expand search), "using computational cost variable probit" (Expand search), "using computational models variable probit" (Expand search), "using computational code variable porosity" (Expand search), "using computational code bivariate probit" (Expand search), "using computational mode variable probit" (Expand search), "using computational one variable probit" (Expand search), "using computational more variable probit" (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: (("using computational code variable probit") OR ("using coding python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"using computational code variable probit\") OR (\"using coding python python programming\"))".
• Removing quotes may allow a broader search: (( using computational code variable probit ) OR ( using coding python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("using computational code variable probit") OR ("using coding python python programming"))*.