Perhaps you should try some spelling variations:
"based computational code computer program" » "and computational code computer program" (Expand search), "by computational code computer program" (Expand search), "based computational model computer program" (Expand search), "based computational cost computer program" (Expand search), "based computational models computer program" (Expand search), "based computational node computer program" (Expand search), "based computational one computer program" (Expand search)
"advanced validity based computing program" » "advanced facility based computing program" (Expand search), "advanced quality based computing program" (Expand search), "advanced validity based consulting program" (Expand search), "advanced validity based computador program" (Expand search), "advanced validity based computer programs" (Expand search), "advanced validity based costing program" (Expand search), "advanced validity and computing program" (Expand search), "advanced validity based coating program" (Expand search), "advanced solidarity based computing program" (Expand search)

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"based computational code computer program\") OR (\"advanced validity based computing program\"))~".
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