Perhaps you should try some spelling variations:
"modified multiobjective estimation algorithms" » "modified multiobjective optimization algorithms", "modified multiobjective estimation algorithm", "modified multiobjective optimisation algorithm"
"modified based evaluation algorithm" » "modified based evolution algorithm", "modified based estimation algorithm", "modified based solution algorithm", "modified load evaluation algorithm", "modified based gradation algorithm", "modified large evaluation algorithm", "modified male evaluation algorithm"

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

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