Perhaps you should try some spelling variations:
"modified invasive estimation algorithmss" » "modified invasive estimation algorithms", "modified invasive estimation algorithm", "modified invasive optimization algorithms", "modified invasive ventilation algorithmss", "modified passive estimation algorithmss"
"modified adaptive ventilation algorithm" » "modified adaptive estimation algorithm", "modified adaptive estimation algorithms", "modified adaptive evolution algorithm", "modified adaptive quantization algorithm", "modified invasive ventilation algorithm", "modified passive ventilation 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 adaptive ventilation algorithm") OR ("modified invasive estimation algorithmss"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified adaptive ventilation algorithm\") OR (\"modified invasive estimation algorithmss\"))".
• Removing quotes may allow a broader search: (( modified adaptive ventilation algorithm ) OR ( modified invasive estimation algorithmss )).
• Adding a wildcard symbol may retrieve word variants: (("modified adaptive ventilation algorithm") OR ("modified invasive estimation algorithmss"))*.