Perhaps you should try some spelling variations:
"modified parameter estimation algorithm" » "modified parameter estimates algorithm", "modified parameter optimization algorithm"
"modified passive solutions algorithm" » "modified passive solution algorithm", "modified passive evolution algorithm", "modified passive evolutionary algorithm", "modified positive solutions algorithm", "modified adaptive solutions algorithm"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified passive solutions algorithm") OR ("modified parameter estimation algorithm"))~.
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