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

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