Perhaps you should try some spelling variations:
"advanced calculations and computer program" » "advanced calculation and computer program" (Expand search), "advanced evaluations and computer program" (Expand search), "and calculations and computer program" (Expand search), "advanced calculations of computer program" (Expand search), "advanced calculation of computer program" (Expand search), "advanced calculations _ computer program" (Expand search)
"advanced computations _ computing program" » "advanced computational _ computing program" (Expand search), "advance computational _ computing program" (Expand search), "advanced communications _ computing program" (Expand search), "advanced computations _ consulting program" (Expand search), "advanced computations _ computador program" (Expand search), "advanced computations _ computer programs" (Expand search)

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