Perhaps you should try some spelling variations:
gonzalez jerez » gonzalez perez (Expand Search), gonzales perez (Expand Search), gonzalez jimenez (Expand Search)
gonzalez pere » gonzalez perez (Expand Search), gonzalez pedro (Expand Search), gonzalez arce (Expand Search)
maria hilaria » maria pilar (Expand Search), maria clara (Expand Search), maria chiara (Expand Search)