Perhaps you should try some spelling variations:
"based computational in computer program" » "and computational in computer program" (Expand search), "by computational in computer program" (Expand search), "based computational and computer program" (Expand search), "based computational _ computer program" (Expand search), "based computational 3d computer program" (Expand search)
"advanced modulation code convex programming" » "advanced calculation code convex programming" (Expand search), "advanced oxidation code convex programming" (Expand search), "advanced modulation code cone programming" (Expand search), "advanced modulation code computer programming" (Expand search), "advanced modulation codes convex programming" (Expand search), "advanced modulation model convex programming" (Expand search), "advanced modulation doped convex programming" (Expand search), "advanced modulation some convex programming" (Expand search), "advanced modulation closed convex programming" (Expand search), "advanced modulation code concept programming" (Expand search)

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