Perhaps you should try some spelling variations:
"fop petroiv OR peteru OR petr OR petroi OR peteru o.s.*" » "fop petrov OR peteru OR petr OR petroi OR peteru o.s.*" (Expand Search), "fop petroiv OR peter OR petr OR petroi OR peter o.s.*" (Expand Search), "fop petroiv OR petru OR petr OR petroi OR petru o.s.*" (Expand Search), "fop petroiv OR peters OR petr OR petroi OR peters o.s.*" (Expand Search), "fop peteroiv OR peteru OR peter OR peteroi OR peteru o.s.*" (Expand Search), "fop petrioiv OR peteru OR petri OR petrioi OR peteru o.s.*" (Expand Search), "fop petruoiv OR peteru OR petru OR petruoi OR peteru o.s.*" (Expand Search), "fop petriv OR peteru OR petr OR petri OR peteru o.s.*" (Expand Search), "fop petrov OR peteru OR petr OR petro OR peteru o.s.*" (Expand Search), "fop petrovv OR peteru OR petr OR petrov OR peteru o.s.*" (Expand Search)

You may be able to get more results by adjusting your search query.

• Removing quotes may allow a broader search: fop ((petroiv OR peteru) OR (petr OR (petroi OR peteru))) o.s.*.