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

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("defined network optimization algorithms") OR ("modified response optimized algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"defined network optimization algorithms\") OR (\"modified response optimized algorithm\"))".
• Removing quotes may allow a broader search: (( defined network optimization algorithms ) OR ( modified response optimized algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("defined network optimization algorithms") OR ("modified response optimized algorithm"))*.