Perhaps you should try some spelling variations:
"modified changing estimation algorithmss" » "modified changing estimation algorithms", "modified changing optimization algorithms", "modified channel estimation algorithmss", "modified charging station algorithmss", "modified caging estimation algorithmss"
"modified parameter estimation algorithm" » "modified parameter estimates algorithm", "modified parameter optimization 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 parameter estimation algorithm") OR ("modified changing estimation algorithmss"))~.
• Removing quotes may allow a broader search: (( modified parameter estimation algorithm ) or ( modified changing estimation algorithmss ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified parameter estimation algorithm") or ("modified changing estimation algorithmss"))*.