Perhaps you should try some spelling variations:
"gonzalez c., german a." » "gonzalez a., german a." (Expand Search), "gonzalez _., german a." (Expand Search), "gonzalez d., german a." (Expand Search), "gonzalez c., german m." (Expand Search), "gonzalez c., german j." (Expand Search), "gonzalez c., german e." (Expand Search)