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

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("modified adaptive estimation algorithmss") or ("modified multiobjective estimation algorithms"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified adaptive estimation algorithmss") OR ("modified multiobjective estimation algorithms")).
• Removing quotes may allow a broader search: (( modified adaptive estimation algorithmss ) or ( modified multiobjective estimation algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("modified adaptive estimation algorithmss") or ("modified multiobjective estimation algorithms"))*.