Perhaps you should try some spelling variations:
"modified stochastic optimization algorithm" » "modified stochastic optimization algorithms", "modified stochastic optimisation algorithm", "modified stochastic estimation algorithm"
"modified objective allocation algorithmss" » "modified objective location algorithmss"

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