Perhaps you should try some spelling variations:
"modified over optimisation algorithm" » "modified over optimization algorithms", "modified over estimation algorithm", "modified _ optimisation algorithm", "modified qoe optimization algorithm", "modified near optimisation algorithm", "modified orca optimisation algorithm"
"modified allocation estimation algorithms" » "modified allocation optimization algorithms", "modified motion estimation algorithms", "modified allocation estimation algorithm", "modified allocation approximation 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 allocation estimation algorithms") OR ("modified over optimisation algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified allocation estimation algorithms\") OR (\"modified over optimisation algorithm\"))".
• Removing quotes may allow a broader search: (( modified allocation estimation algorithms ) OR ( modified over optimisation algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("modified allocation estimation algorithms") OR ("modified over optimisation algorithm"))*.