Perhaps you should try some spelling variations:
"modified allocation optimization algorithms" » "modified allocation optimisation algorithm", "modified allocation estimation algorithms", "modified allocation estimation algorithm", "modified allocation optimisation algorithms", "modified allocation estimation algorithmss", "modified location optimization algorithms"
"modified network optimization algorithm" » "modified network optimisation algorithm", "modified network estimation algorithm", "modified network estimation algorithms", "certified network optimization algorithm", "defined network optimization algorithm", "modified near optimization 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: "((\"modified allocation optimization algorithms\") OR (\"modified network optimization algorithm\"))~".
• Removing quotes may allow a broader search: (( modified allocation optimization algorithms ) OR ( modified network optimization algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified allocation optimization algorithms") OR ("modified network optimization algorithm"))*.