Perhaps you should try some spelling variations:
"modified objective optimisation algorithm" » "modified objective optimization algorithm", "modified multiobjective optimization algorithm", "modified objective optimization algorithms", "modified objective estimation algorithm", "modified objective estimation algorithms"
"machines making methods algorithm" » "machines using methods algorithm", "machines learning methods algorithm", "machines graining methods algorithm"

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified objective optimisation algorithm\") OR (\"machines making methods algorithm\"))~".
• Removing quotes may allow a broader search: (( modified objective optimisation algorithm ) OR ( machines making methods algorithm ))~.
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