Perhaps you should try some spelling variations:
"modified allocation optimisation algorithm" » "modified allocation optimization algorithm", "modified allocation optimization algorithms", "modified allocation estimation algorithm", "modified allocation estimation algorithms"
"model using methods algorithm" » "model nursing methods algorithm", "model making methods algorithm", "model counting methods algorithm", "code using methods algorithm", "models nursing methods algorithm", "powder using methods algorithm"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (("model using methods algorithm") OR ("modified allocation optimisation algorithm"))~.
• Removing quotes may allow a broader search: (( model using methods algorithm ) or ( modified allocation optimisation algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("model using methods algorithm") or ("modified allocation optimisation algorithm"))*.