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

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