Perhaps you should try some spelling variations:
"modified objective estimation algorithmsss" » "modified objective estimation algorithm", "modified objective estimation algorithmss", "modified objective optimization algorithmsss", "modified objective optimisation algorithmss", "modified objective allocation algorithmsss"
"modified parameter estimation algorithms" » "modified parameter estimation algorithm", "modified parameter optimization algorithms", "modified parameter optimisation algorithm", "modified parameter estimates algorithms"

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 parameter estimation algorithms") OR ("modified objective estimation algorithmsss"))~.
• Removing quotes may allow a broader search: (( modified parameter estimation algorithms ) or ( modified objective estimation algorithmsss ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified parameter estimation algorithms") or ("modified objective estimation algorithmsss"))*.