Perhaps you should try some spelling variations:
"modified df optimizer algorithms" » "modified df optimized algorithms", "modified df optimized algorithm", "modified df optimization algorithms", "modified _ optimized algorithms", "modified _ optimize algorithms", "modified _ optimizer algorithms", "modified adam optimizer algorithms", "modified bi1 optimizer algorithms"
"modified objective solution algorithm" » "modified objective evolutionary algorithm", "modified objective allocation algorithm", "modified objective evolution algorithm", "modified objective convolution algorithms"

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 df optimizer algorithms") or ("modified objective solution algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified df optimizer algorithms") OR ("modified objective solution algorithm")).
• Removing quotes may allow a broader search: (( modified df optimizer algorithms ) or ( modified objective solution algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("modified df optimizer algorithms") or ("modified objective solution algorithm"))*.