Perhaps you should try some spelling variations:
"certified network optimization algorithms" » "certified network optimisation algorithm", "certified network estimation algorithms", "certified network estimation algorithm", "verified network optimization algorithms"
"modified positive solutions algorithm" » "modified positive solution algorithm", "modified positive evolution algorithm", "modified positive evolutionary algorithm", "modified passive solutions algorithm", "modified adaptive solutions algorithm"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("modified positive solutions algorithm") or ("certified network optimization algorithms"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified positive solutions algorithm") OR ("certified network optimization algorithms"))*.
• Removing quotes may allow a broader search: (( modified positive solutions algorithm ) or ( certified network optimization algorithms ))*.