Perhaps you should try some spelling variations:
"modified df simulation algorithm" » "modified df solution algorithm", "modified df optimisation algorithm", "modified df estimation algorithms", "modified _ simulation algorithm", "modified a simulation algorithm", "modified 3d simulation algorithm", "modified adam simulation algorithm", "modified bi1 simulation algorithm"
"modified dfdamdamdaptive estimation algorithm" » "modified _damdamdaptive estimation algorithm", "modified adamdamdamdaptive estimation algorithm", "modified bi1damdamdaptive estimation algorithm"

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