Perhaps you should try some spelling variations:
"modified multiobjective optimized algorithms" » "modified multiobjective optimization algorithms", "modified multiobjective optimized algorithm", "modified multiobjective optimizer algorithms"
"modified df predictive algorithm" » "modified df predation algorithm", "modified df predators algorithm", "modified _ predictive algorithm", "modified a predictive algorithm", "modified model predictive algorithm", "modified adam predictive algorithm", "modified bi1 predictive algorithm"

Try widening your search to All Fields.

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

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