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"
"modified objective estimation algorithmss" » "modified objective estimation algorithms", "modified objective estimation algorithm", "modified objective optimization algorithms", "modified objective optimization algorithmss", "modified objective allocation algorithmss"

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: (("modified objective estimation algorithmss") OR ("modified allocation optimisation algorithm"))~.
• Removing quotes may allow a broader search: (( modified objective estimation algorithmss ) or ( modified allocation optimisation algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified objective estimation algorithmss") or ("modified allocation optimisation algorithm"))*.