Perhaps you should try some spelling variations:
"modified lighting optimisation algorithm" » "modified lighting optimization algorithms", "modified lighting estimation algorithm", "modified caging optimisation algorithm"
"modified objective estimation algorithms" » "modified objective estimation algorithm", "modified objective optimization algorithms", "modified objective approximation algorithms", "modified objective allocation algorithms"

Try widening your search to All Fields.

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

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