Perhaps you should try some spelling variations:
"advanced computations and computer program" » "advanced computational and computer program" (Expand search), "advance computational and computer program" (Expand search), "advanced communications and computer program" (Expand search), "advanced computation and computer program" (Expand search), "advanced computations in computer program" (Expand search), "advanced computations _ computer program" (Expand search)
"advanced simulation code code programming" » "advanced modulation code code programming" (Expand search), "advanced calculation code code programming" (Expand search), "advanced simulation code cone programming" (Expand search), "advanced simulation code core programming" (Expand search), "advanced simulation code co programming" (Expand search), "advanced simulation model code programming" (Expand search), "advanced simulation case code programming" (Expand search), "advanced simulation models code programming" (Expand search), "advanced simulation code cdc programming" (Expand search)

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