Perhaps you should try some spelling variations:
"modified multiobjective optimisation algorithm" » "modified multiobjective optimization algorithm", "modified objective optimization algorithm", "modified multiobjective optimization algorithms", "modified multiobjective estimation algorithm", "modified multiobjective estimation algorithms"
"machinery using open algorithm" » "machines using open algorithm", "machinery using mppt algorithm", "machinery using our algorithm", "machinery using driven algorithm", "machinery using opencl algorithm", "machinery using one algorithm"

Try widening your search to All Fields.

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