Perhaps you should try some spelling variations:
"modified notion estimation algorithmsssssss" » "modified notion estimation algorithms", "modified motion estimation algorithmsssssss"
"modified objective predation algorithm" » "modified objective allocation algorithm", "modified objective predators algorithm", "modified objective estimation algorithm"

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

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