Perhaps you should try some spelling variations:
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"and computational or computing program" » "_ computational or computing program" (Expand search), "and computational or consulting program" (Expand search), "and computational or computador program" (Expand search), "and computational or computer programs" (Expand search), "and computational art computing program" (Expand search), "and computational one computing program" (Expand search), "and computational _ computing program" (Expand search), "and computational of computing program" (Expand search), "and computational on computing program" (Expand search), "and computational or competing program" (Expand search)

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"advanced modulation python computer program\") OR (\"and computational or computing program\"))~".
• Removing quotes may allow a broader search: (( advanced modulation python computer program ) OR ( and computational or computing program ))~.
• Adding a wildcard symbol may retrieve word variants: (("advanced modulation python computer program") OR ("and computational or computing program"))*.