Perhaps you should try some spelling variations:
"modified network optimisation algorithm" » "modified network optimization algorithms", "modified network estimation algorithm", "modified network estimation algorithms", "modified network optimization algorithm", "certified network optimisation algorithm", "defined network optimisation algorithm", "modified near optimisation algorithm"
"machines using methods algorithm" » "machinery using methods algorithm", "machines nursing methods algorithm", "machines making methods algorithm", "machines counting methods algorithm"

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: "((\"machines using methods algorithm\") OR (\"modified network optimisation algorithm\"))~".
• Removing quotes may allow a broader search: (( machines using methods algorithm ) OR ( modified network optimisation algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("machines using methods algorithm") OR ("modified network optimisation algorithm"))*.