Perhaps you should try some spelling variations:
"designed network optimization algorithms" » "designed network optimisation algorithm", "designed network estimation algorithms", "designed network estimation algorithm", "designed network optimisation algorithms", "designed network estimation algorithmss", "defined network optimization algorithms"
"modified stochastic optimization algorithm" » "modified stochastic optimisation algorithm", "modified stochastic estimation algorithm", "modified stochastic 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: "((\"designed network optimization algorithms\") OR (\"modified stochastic optimization algorithm\"))~".
• Removing quotes may allow a broader search: (( designed network optimization algorithms ) OR ( modified stochastic optimization algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("designed network optimization algorithms") OR ("modified stochastic optimization algorithm"))*.