Perhaps you should try some spelling variations:
"modified passive ventilation algorithm" » "modified passive estimation algorithm", "modified passive estimation algorithms", "modified passive evolution algorithm", "modified adaptive ventilation algorithm", "modified invasive ventilation algorithm"
"modified objective allocation algorithm" » "modified objective estimation algorithm", "modified objective evolution algorithm", "modified objective predation algorithm"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("modified objective allocation algorithm") or ("modified passive ventilation algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified objective allocation algorithm") OR ("modified passive ventilation algorithm")).
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