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