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