Perhaps you should try some spelling variations:
"modified multiobjective optimization algorithms" » "modified multiobjective optimisation algorithm", "modified multiobjective estimation algorithms", "modified multiobjective estimation algorithm"
"towler learning method algorithm" » "towler learning mom algorithm", "towler learning methods algorithm", "towler graining methods algorithm", "towler learning emotion algorithm", "tower learning method algorithm", "bowler learning method algorithm"

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

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