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