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

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• Performing a fuzzy search may retrieve terms with similar spellings: (("modified passive ventilation algorithms") or ("modified invasive solution algorithm"))~.
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