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

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

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