Perhaps you should try some spelling variations:
"modified lighting optimization algorithms" » "modified lighting optimisation algorithm", "modified lighting estimation algorithms", "modified lighting estimation algorithm", "modified staffing optimization algorithms", "modified caging 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.

• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified delphi evolution algorithm") OR ("modified lighting optimization algorithms"))~.
• Removing quotes may allow a broader search: (( modified delphi evolution algorithm ) or ( modified lighting optimization algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified delphi evolution algorithm") or ("modified lighting optimization algorithms"))*.