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