Perhaps you should try some spelling variations:
"_ computational using controller problem" » "_ computation using controller problem" (Expand search), "_ computations using controller problem" (Expand search), "_ computacional usinas controller problem" (Expand search), "_ computational using control problem" (Expand search), "_ computational using controller role" (Expand search), "_ computational using controlled probe" (Expand search), "_ computational using controlled problem" (Expand search), "_ computational tuning controller problem" (Expand search), "_ computational during controlled problem" (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: "((\"_ computational using controller problem\") OR (\"using python python python programming\"))~".
• Removing quotes may allow a broader search: (( _ computational using controller problem ) OR ( using python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("_ computational using controller problem") OR ("using python python python programming"))*.