Perhaps you should try some spelling variations:
"modified multiobjective optimizer algorithms" » "modified multiobjective optimization algorithms", "modified multiobjective optimized algorithms", "modified multiobjective optimized algorithm"
"modified df prediction algorithm" » "modified df predation algorithm", "modified df predators algorithm", "modified _ prediction algorithm", "modified a prediction algorithm", "modified admet prediction algorithm", "modified adam prediction algorithm", "modified bi1 prediction 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 optimizer algorithms") or ("modified df prediction algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified multiobjective optimizer algorithms") OR ("modified df prediction algorithm")).
• Removing quotes may allow a broader search: (( modified multiobjective optimizer algorithms ) or ( modified df prediction algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("modified multiobjective optimizer algorithms") or ("modified df prediction algorithm"))*.