Perhaps you should try some spelling variations:
"modified objective estimation algorithms" » "modified objective estimation algorithm", "modified objective optimization algorithms", "modified objective optimisation algorithm", "modified objective allocation algorithms"
"modified trace solution algorithm" » "modified trace evolution algorithm", "modified trace convolution algorithms", "modified trace evolutionary algorithm", "modified traces solution algorithm", "modified male solution algorithm", "modified orca solution algorithm", "modified exact solution algorithm", "modified nacl solution algorithm"

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