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