Perhaps you should try some spelling variations:
"modified parameters optimization algorithms" » "modified parameters optimisation algorithm", "modified parameters estimation algorithms", "modified parameters estimation algorithm", "modified parameter optimization algorithms", "modified parameter estimation algorithms"
"modified make estimation algorithmss" » "modified make estimation algorithms", "modified make estimation algorithm", "modified pose estimation algorithmss", "modified male estimation algorithmss"

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 make estimation algorithmss") OR ("modified parameters optimization algorithms"))~.
• Removing quotes may allow a broader search: (( modified make estimation algorithmss ) or ( modified parameters optimization algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified make estimation algorithmss") or ("modified parameters optimization algorithms"))*.