Perhaps you should try some spelling variations:
"modified allocation optimization algorithms" » "modified allocation optimisation algorithm", "modified allocation estimation algorithm", "modified allocation optimized algorithms", "modified location optimization algorithms"
"modified make estimation algorithms" » "modified make estimation algorithm", "modified make optimisation algorithm", "modified make approximation algorithms", "modified pose estimation algorithms", "modified male estimation algorithms"

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 make estimation algorithms\") OR (\"modified allocation optimization algorithms\"))~".
• Removing quotes may allow a broader search: (( modified make estimation algorithms ) OR ( modified allocation optimization algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified make estimation algorithms") OR ("modified allocation optimization algorithms"))*.