Perhaps you should try some spelling variations:
"advanced duplication on computer program" » "advanced application on computer program" (Expand search), "advanced applications on computer program" (Expand search), "advanced glication on computer program" (Expand search), "advanced duplication of computer program" (Expand search), "advanced duplication in computer program" (Expand search), "advanced duplication and computer program" (Expand search), "advanced duplication en computer program" (Expand search)
"based computational in computing program" » "and computational in computing program" (Expand search), "by computational in computing program" (Expand search), "based computational in consulting program" (Expand search), "based computational in computador program" (Expand search), "based computational in computer programs" (Expand search), "based computational and computing program" (Expand search), "based computational _ computing program" (Expand search), "based computational 3d computing program" (Expand search), "based computational of computing program" (Expand search)

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