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