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

Try widening your search to All Fields.

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 optimisation algorithmssss") or ("modified _ optimisation algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified multiobjective optimisation algorithmssss") OR ("modified _ optimisation algorithm")).
• Removing quotes may allow a broader search: (( modified multiobjective optimisation algorithmssss ) or ( modified _ optimisation algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("modified multiobjective optimisation algorithmssss") or ("modified _ optimisation algorithm"))*.