Perhaps you should try some spelling variations:
"based expression using integer programming" » "based expression using linear programming" (Expand search), "and expression using integer programming" (Expand search), "based regression using integer programming" (Expand search), "fixed expressions using integer programming" (Expand search), "based expression during integer programming" (Expand search), "based expression and integer programming" (Expand search), "based expression using inter programming" (Expand search), "based expression using internet programming" (Expand search), "based expression using integral 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: "((\"based expression using integer programming\") OR (\"using python python python programming\"))~".
• Removing quotes may allow a broader search: (( based expression using integer programming ) OR ( using python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("based expression using integer programming") OR ("using python python python programming"))*.