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