Perhaps you should try some spelling variations:
"modified objective optimization algorithms" » "modified objective optimisation algorithm", "modified objective estimation algorithm", "modified objective optimized algorithms", "modified multiobjective optimization algorithms"
"verified network estimation algorithms" » "verified network estimation algorithm", "verified network optimisation algorithm", "verified network approximation algorithms", "verified network optimization algorithms", "certified network estimation algorithms", "defined network estimation 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 objective optimization algorithms") OR ("verified network estimation algorithms"))~.
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