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