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 solution algorithm" » "modified adaptive evolution algorithm", "modified adaptive convolution algorithms", "modified adaptive evolutionary algorithm", "modified passive solution 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 adaptive solution algorithm") OR ("certified network optimization algorithm"))~.
• Removing quotes may allow a broader search: (( modified adaptive solution algorithm ) or ( certified network optimization algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified adaptive solution algorithm") or ("certified network optimization algorithm"))*.