Perhaps you should try some spelling variations:
"modified multiobjective optimization algorithms" » "modified multiobjective optimisation algorithm", "modified multiobjective estimation algorithms", "modified multiobjective estimation algorithm"
"boiler graining methods algorithm" » "boiler learning methods algorithm", "boiler learning method algorithm", "boiler making methods algorithm", "bowler graining methods algorithm"

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

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