Perhaps you should try some spelling variations:
"modified bi1 optimisation algorithms" » "modified bi1 optimisation algorithm", "modified bi1 optimization algorithms", "modified bi1 estimation algorithms", "modified _ optimisation algorithms", "modified _ optimization algorithms", "modified qoe optimization algorithms"
"modified parameters optimization algorithm" » "modified parameter optimization algorithm", "modified parameter estimation algorithm", "modified parameters optimization algorithms", "modified parameters optimisation algorithm", "modified parameters estimation algorithm"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("modified bi1 optimisation algorithms") OR ("modified parameters optimization algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified bi1 optimisation algorithms\") OR (\"modified parameters optimization algorithm\"))".
• Removing quotes may allow a broader search: (( modified bi1 optimisation algorithms ) OR ( modified parameters optimization algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("modified bi1 optimisation algorithms") OR ("modified parameters optimization algorithm"))*.