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