Perhaps you should try some spelling variations:
"modified write estimation algorithmss" » "modified write estimation algorithm", "modified write optimization algorithms", "modified write estimation algorithms", "modified write optimization algorithmss", "modified write optimisation algorithms", "modified risk estimation algorithmss", "modified pose estimation algorithmss"
"modified objective estimation algorithms" » "modified objective estimation algorithm", "modified objective optimization algorithms", "modified objective optimisation algorithm", "modified objective allocation 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 objective estimation algorithms") OR ("modified write estimation algorithmss"))~.
• Removing quotes may allow a broader search: (( modified objective estimation algorithms ) or ( modified write estimation algorithmss ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified objective estimation algorithms") or ("modified write estimation algorithmss"))*.