Perhaps you should try some spelling variations:
"modified quantile estimation algorithms" » "modified quantile optimization algorithms", "modified quantile optimisation algorithm", "modified quantile approximation algorithms"
"modified adaptive estimation algorithm" » "modified adaptive ventilation algorithm", "modified adaptive quantization algorithm", "modified passive estimation 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 adaptive estimation algorithm") OR ("modified quantile estimation algorithms"))~.
• Removing quotes may allow a broader search: (( modified adaptive estimation algorithm ) or ( modified quantile estimation algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified adaptive estimation algorithm") or ("modified quantile estimation algorithms"))*.