Perhaps you should try some spelling variations:
"modified stochastic optimization algorithms" » "modified stochastic optimisation algorithm", "modified stochastic estimation algorithms", "modified stochastic estimation algorithm"
"defined network optimized algorithm" » "defined network optimized algorithms", "defined network optimizer algorithms", "defined network optimization algorithm", "designed network optimized algorithm"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (("defined network optimized algorithm") OR ("modified stochastic optimization algorithms"))~.
• Removing quotes may allow a broader search: (( defined network optimized algorithm ) or ( modified stochastic optimization algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("defined network optimized algorithm") or ("modified stochastic optimization algorithms"))*.