Perhaps you should try some spelling variations:
"modified network optimization algorithms" » "modified network optimisation algorithm", "modified network estimation algorithms", "modified network estimation algorithm", "certified network optimization algorithms", "defined network optimization algorithms", "modified near optimization algorithms"
"modified positive solution algorithm" » "modified positive evolution algorithm", "modified positive convolution algorithms", "modified positive evolutionary algorithm", "modified passive solution algorithm", "modified adaptive solution algorithm", "modified positive 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 solution algorithm") or ("modified network optimization algorithms"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified positive solution algorithm") OR ("modified network optimization algorithms"))*.
• Removing quotes may allow a broader search: (( modified positive solution algorithm ) or ( modified network optimization algorithms ))*.