Perhaps you should try some spelling variations:
"modified parameter optimization algorithm" » "modified parameter optimization algorithms", "modified parameter optimisation algorithm", "modified parameter estimation algorithm", "modified parameters optimization algorithm"
"modified early solution algorithm" » "modified early evolution algorithm", "modified early convolution algorithms", "modified early evolutionary algorithm", "modified male solution algorithm", "modified near solution algorithm", "modified nacl solution 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 early solution algorithm") OR ("modified parameter optimization algorithm"))~.
• Removing quotes may allow a broader search: (( modified early solution algorithm ) or ( modified parameter optimization algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified early solution algorithm") or ("modified parameter optimization algorithm"))*.