Perhaps you should try some spelling variations:
"modified objective optimizer algorithmsss" » "modified objective optimizer algorithms", "modified objective optimized algorithms", "modified objective optimized algorithm", "modified objective optimal algorithmsss", "modified objective optimization algorithmsss"
"modified parameters estimation algorithms" » "modified parameter estimation algorithms", "modified parameter estimates algorithms", "modified parameter optimization algorithms", "modified parameters estimation algorithm", "modified parameters optimization algorithms", "modified parameters optimisation algorithm"

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

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