Perhaps you should try some spelling variations:
"and computational in integer program" » "_ computational in integer program" (Expand search), "and computational and integer program" (Expand search), "and computational _ integer program" (Expand search), "and computational 3d integer program" (Expand search), "and computational in integer programs" (Expand search), "and computational in integra program" (Expand search), "and computational in integer programing" (Expand search), "and computational an integer program" (Expand search), "and computational in inter program" (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: "((\"and computational in integer program\") OR (\"using python python python programming\"))~".
• Removing quotes may allow a broader search: (( and computational in integer program ) OR ( using python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("and computational in integer program") OR ("using python python python programming"))*.