Perhaps you should try some spelling variations:
"modified network optimizer algorithms" » "modified network optimized algorithms", "modified network optimization algorithms", "certified network optimizer algorithms", "defined network optimizer algorithms", "modified near optimizer algorithms"
"modified parameter optimized algorithm" » "modified parameter optimization algorithm", "modified parameter optimized algorithms"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("modified parameter optimized algorithm") or ("modified network optimizer algorithms"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified parameter optimized algorithm") OR ("modified network optimizer algorithms")).
• Removing quotes may allow a broader search: (( modified parameter optimized algorithm ) or ( modified network optimizer algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("modified parameter optimized algorithm") or ("modified network optimizer algorithms"))*.