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