Perhaps you should try some spelling variations:
"modified policy optimisation algorithm" » "modified policy optimization algorithms", "modified policy estimation algorithm", "modified policy optimization algorithm", "modified topology optimization algorithm"
"modified notion estimation algorithms" » "modified notion estimation algorithm", "modified notion optimization algorithms", "modified notion approximation algorithms", "modified motion estimation algorithms"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("modified notion estimation algorithms") OR ("modified policy optimisation algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified notion estimation algorithms\") OR (\"modified policy optimisation algorithm\"))".
• Removing quotes may allow a broader search: (( modified notion estimation algorithms ) OR ( modified policy optimisation algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("modified notion estimation algorithms") OR ("modified policy optimisation algorithm"))*.