Perhaps you should try some spelling variations:
"modified objective optimization algorithms" » "modified objective optimisation algorithm", "modified objective estimation algorithms", "modified objective estimation algorithm", "modified multiobjective optimization algorithms"
"modified made estimation algorithmss" » "modified made estimation algorithms", "modified made estimation algorithm", "modified pose estimation algorithmss", "modified male estimation algorithmss", "modified adam estimation algorithmss", "modified df estimation algorithmss"

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 objective optimization algorithms") OR ("modified made estimation algorithmss"))~.
• Removing quotes may allow a broader search: (( modified objective optimization algorithms ) or ( modified made estimation algorithmss ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified objective optimization algorithms") or ("modified made estimation algorithmss"))*.