Perhaps you should try some spelling variations:
"modelo de regresion lineal probit" » "modelo de regresion penal probit" (Expand Search), "modelo de regresion binomial probit" (Expand Search), "modelo de regresion ordinal probit" (Expand Search), "modelo de agresion lineal probit" (Expand Search), "modelo de regreso lineal probit" (Expand Search), "modelo de reflexion lineal probit" (Expand Search)
"modelo de revision lineal probit" » "modelo de revision general probit" (Expand Search), "modelo de revision penal probit" (Expand Search), "modelo de revision integral probit" (Expand Search), "modelo una revision lineal probit" (Expand Search)

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