Perhaps you should try some spelling variations:
"verified network optimization algorithm" » "verified network optimization algorithms", "verified network optimisation algorithm", "verified network estimation algorithm", "certified network optimization algorithm", "defined network optimization algorithm"
"modified delphi solution algorithm" » "modified delphi evolution algorithm", "modified delphi convolution algorithms", "modified delphi evolutionary algorithm"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("verified network optimization algorithm") or ("modified delphi solution algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("verified network optimization algorithm") OR ("modified delphi solution algorithm")).
• Removing quotes may allow a broader search: (( verified network optimization algorithm ) or ( modified delphi solution algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("verified network optimization algorithm") or ("modified delphi solution algorithm"))*.