Perhaps you should try some spelling variations:
"modified quantile optimisation algorithm" » "modified quantile optimization algorithms", "modified quantile estimation algorithm", "modified quantile estimation algorithms", "modified adaptive optimisation algorithm"
"modified passive ventilation algorithm" » "modified passive estimation algorithm", "modified passive estimation algorithms", "modified passive evolution algorithm", "modified adaptive ventilation algorithm", "modified invasive ventilation algorithm"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified quantile optimisation algorithm") OR ("modified passive ventilation algorithm"))~.
• Removing quotes may allow a broader search: (( modified quantile optimisation algorithm ) or ( modified passive ventilation algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified quantile optimisation algorithm") or ("modified passive ventilation algorithm"))*.