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