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 model predicting algorithm" » "modified model predation algorithm", "modified model predators algorithm", "modified model splitting algorithm", "modified model predictive algorithm", "modified model reduction algorithm", "modified male predicting 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 model predicting algorithm") or ("modified network optimization algorithms"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified model predicting algorithm") OR ("modified network optimization algorithms")).
• Removing quotes may allow a broader search: (( modified model predicting algorithm ) or ( modified network optimization algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("modified model predicting algorithm") or ("modified network optimization algorithms"))*.