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 objective allocation algorithmssss" » "modified objective location algorithmssss"

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 objective allocation algorithmssss\") OR (\"modified parameter optimization algorithm\"))~".
• Removing quotes may allow a broader search: (( modified objective allocation algorithmssss ) OR ( modified parameter optimization algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified objective allocation algorithmssss") OR ("modified parameter optimization algorithm"))*.