Perhaps you should try some spelling variations:
"modified _ optimisation algorithm" » "modified _ optimization algorithms", "modified _ estimation algorithm", "modified _ estimation algorithms"
"modified allocation estimation algorithmss" » "modified allocation estimation algorithms", "modified allocation estimation algorithm", "modified allocation optimization algorithms", "modified allocation optimization algorithmss", "modified motion estimation algorithmss"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified _ optimisation algorithm\") OR (\"modified allocation estimation algorithmss\"))~".
• Removing quotes may allow a broader search: (( modified _ optimisation algorithm ) OR ( modified allocation estimation algorithmss ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified _ optimisation algorithm") OR ("modified allocation estimation algorithmss"))*.