Perhaps you should try some spelling variations:
"modified delphi convolution algorithms" » "modified delphi evolution algorithm", "modified delphi solution algorithm"
"modified seird estimation algorithms" » "modified seird estimation algorithm", "modified seird optimization algorithms", "modified seird optimisation algorithm", "modified sphere estimation algorithms", "modified risk estimation algorithms", "modified near estimation algorithms"

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: (("modified seird estimation algorithms") OR ("modified delphi convolution algorithms"))~.
• Removing quotes may allow a broader search: (( modified seird estimation algorithms ) or ( modified delphi convolution algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified seird estimation algorithms") or ("modified delphi convolution algorithms"))*.