Perhaps you should try some spelling variations:
"modified parameter optimisation algorithm" » "modified parameter optimization algorithm", "modified parameter estimation algorithm", "modified parameter optimization algorithms", "modified parameter estimation algorithms"
"modified one approximation algorithms" » "modified time approximation algorithms", "modified _ approximation algorithms", "modified rough approximations algorithms", "modified male approximation algorithms", "modified near approximation algorithms", "modified orca approximation algorithms"

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• Performing a fuzzy search may retrieve terms with similar spellings: (("modified parameter optimisation algorithm") OR ("modified one approximation algorithms"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified parameter optimisation algorithm\") OR (\"modified one approximation algorithms\"))*".
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