Perhaps you should try some spelling variations:
"modified caging optimisation algorithm" » "modified caging optimization algorithms", "modified caging estimation algorithm", "modified caging estimation algorithms", "modified staffing optimization algorithm"
"modified objective optimized algorithm" » "modified objective optimal algorithm", "modified objective optimization algorithm", "modified objective optimized algorithms", "modified objective optimizer 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 caging optimisation algorithm") or ("modified objective optimized algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified caging optimisation algorithm") OR ("modified objective optimized algorithm")).
• Removing quotes may allow a broader search: (( modified caging optimisation algorithm ) or ( modified objective optimized algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("modified caging optimisation algorithm") or ("modified objective optimized algorithm"))*.