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