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