Perhaps you should try some spelling variations:
"modified multiobjective estimation algorithms" » "modified multiobjective optimization algorithms", "modified multiobjective estimation algorithm", "modified multiobjective optimisation algorithm"
"modified adam optimizer algorithms" » "modified adam optimized algorithms", "modified adam optimized algorithm", "modified adam optimization algorithms", "modified df optimizer algorithms", "modified near optimizer 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 multiobjective estimation algorithms") OR ("modified adam optimizer algorithms"))~.
• Removing quotes may allow a broader search: (( modified multiobjective estimation algorithms ) or ( modified adam optimizer algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified multiobjective estimation algorithms") or ("modified adam optimizer algorithms"))*.