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