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

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