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