Perhaps you should try some spelling variations:
"modified delphi convolution algorithms" » "modified delphi evolution algorithm", "modified delphi solution algorithm"
"modified market estimation algorithms" » "modified market estimation algorithm", "modified market optimization algorithms", "modified market optimisation algorithm", "modified parameter estimation algorithms", "modified male 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 delphi convolution algorithms") OR ("modified market estimation algorithms"))~.
• Removing quotes may allow a broader search: (( modified delphi convolution algorithms ) or ( modified market estimation algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified delphi convolution algorithms") or ("modified market estimation algorithms"))*.