Perhaps you should try some spelling variations:
"modified multiobjective optimization algorithmssss" » "modified multiobjective optimization algorithms", "modified multiobjective optimisation algorithm"
"modified _ optimisation algorithms" » "modified _ optimisation algorithm", "modified _ optimization algorithms", "modified _ estimation algorithms"

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 _ optimisation algorithms") OR ("modified multiobjective optimization algorithmssss"))~.
• Removing quotes may allow a broader search: (( modified _ optimisation algorithms ) or ( modified multiobjective optimization algorithmssss ))~.
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