Perhaps you should try some spelling variations:
"modified invasive convolution algorithms" » "modified invasive evolution algorithm", "modified invasive solution algorithm", "modified invasive ventilation algorithms"
"modified passive optimized algorithms" » "modified passive optimized algorithm", "modified passive optimizer algorithms", "modified passive optimization algorithms", "modified adaptive optimized algorithms"

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified invasive convolution algorithms\") OR (\"modified passive optimized algorithms\"))~".
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