Perhaps you should try some spelling variations:
"modified multiobjective optimization algorithm" » "modified multiobjective optimization algorithms", "modified multiobjective optimisation algorithm", "modified multiobjective estimation algorithm"
"mobile learning mom algorithm" » "machine learning mom algorithm", "mobile learning adam algorithm", "mobile learning mppt algorithm", "mobile learning _ algorithm", "mobile learning from algorithm", "mobile learning model algorithm", "mobile learnings from algorithm"

Try widening your search to All Fields.

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