Perhaps you should try some spelling variations:
"modified multiobjective optimization algorithm" » "modified multiobjective optimization algorithms", "modified multiobjective optimisation algorithm", "modified multiobjective estimation algorithm"
"powder using our algorithm" » "powder using source algorithm", "powder using qspr algorithm", "powder using _ algorithm", "code using our algorithm", "boiler using our algorithm", "model using our algorithm", "powder using one algorithm"

Try widening your search to All Fields.

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