Perhaps you should try some spelling variations:
"modified parameter optimization algorithm" » "modified parameter optimization algorithms", "modified parameter estimation algorithm", "modified parameter estimation algorithms", "modified parameters optimization algorithm"
"modified carbon optimisation algorithm" » "modified carbon optimization algorithms", "modified carbon estimation algorithm", "modified carbon estimation algorithms"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified parameter optimization algorithm\") OR (\"modified carbon optimisation algorithm\"))~".
• Removing quotes may allow a broader search: (( modified parameter optimization algorithm ) OR ( modified carbon optimisation algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified parameter optimization algorithm") OR ("modified carbon optimisation algorithm"))*.