Perhaps you should try some spelling variations:
"modified multiobjective estimation algorithms" » "modified multiobjective optimization algorithms", "modified multiobjective estimation algorithm", "modified multiobjective optimisation algorithm"
"modified pulse optimizer algorithms" » "modified pulse optimized algorithms", "modified pulse optimized algorithm", "modified pulse optimization algorithms", "modified male optimizer algorithms", "modified passive optimizer algorithms"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("modified pulse optimizer algorithms") or ("modified multiobjective estimation algorithms"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified pulse optimizer algorithms") OR ("modified multiobjective estimation algorithms")).
• Removing quotes may allow a broader search: (( modified pulse optimizer algorithms ) or ( modified multiobjective estimation algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("modified pulse optimizer algorithms") or ("modified multiobjective estimation algorithms"))*.