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