Perhaps you should try some spelling variations:
"based computations using linear programming" » "based computation using linear programming" (Expand search), "based computational using linear programming" (Expand search), "based competition using linear programming" (Expand search), "based populations using linear programming" (Expand search), "based computations in linear programming" (Expand search)
"using in python python programming" » "using in pythons python programming" (Expand search), "using in piton python programming" (Expand search), "using in pitons python programming" (Expand search), "using _ 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: "((\"based computations using linear programming\") OR (\"using in python python programming\"))~".
• Removing quotes may allow a broader search: (( based computations using linear programming ) OR ( using in python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("based computations using linear programming") OR ("using in python python programming"))*.