Perhaps you should try some spelling variations:
"based computation using agents program" » "based computational using agents program" (Expand search), "based competition using agents program" (Expand search), "based compilation using agents program" (Expand search), "based computations using agents program" (Expand search), "based computation in agents program" (Expand search), "based composition using agents program" (Expand search), "based computation using agent program" (Expand search), "based computation using age program" (Expand search), "based computation causing agents program" (Expand search), "based computation luting agents program" (Expand search)
"using modeling vpython python programming" » "using modeling method python programming" (Expand search), "using model vpython python programming" (Expand search), "using modern vpython python programming" (Expand search), "using models vpython python programming" (Expand search), "using modeling python python programming" (Expand search), "using modeling pythons python programming" (Expand search), "using modeling piton python programming" (Expand search)

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"based computation using agents program\") OR (\"using modeling vpython python programming\"))".
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