Perhaps you should try some spelling variations:
"using computation of linear program" » "using computational of linear program" (Expand search), "using imputation of linear program" (Expand search), "using compilation of linear program" (Expand search), "using computation of linear programmin" (Expand search), "using computation of linear programming" (Expand search)
"using python python python programming" » "using pythons python python programming" (Expand search), "using piton python python programming" (Expand search), "using pitons python python programming" (Expand search), "usando python python python programming" (Expand search), "in python 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 computation of linear program\") OR (\"using python python python programming\"))~".
• Removing quotes may allow a broader search: (( using computation of linear program ) OR ( using python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("using computation of linear program") OR ("using python python python programming"))*.