Perhaps you should try some spelling variations:
"modified objective estimation algorithmssss" » "modified objective estimation algorithm", "modified objective estimation algorithmsss", "modified objective optimization algorithmssss", "modified objective optimisation algorithmsss", "modified objective allocation algorithmssss"
"modified robust estimation algorithms" » "modified robust estimation algorithm", "modified robust optimization algorithms", "modified robust optimisation algorithm", "modified pose estimation algorithms", "modified risk estimation algorithms"

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