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