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