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