Perhaps you should try some spelling variations:
"fop petriov OR petro OR petri OR petrov OR petero OR petruo OR petr o.s.*" » "fop petriov OR petru OR petri OR petruv OR petero OR petruo OR petr o.s.*" (Expand Search), "fop peteriov OR petero OR peteri OR peterov OR petero OR peteruo OR peter o.s.*" (Expand Search), "fop petruiov OR petruo OR petrui OR petruov OR petero OR petruuo OR petru o.s.*" (Expand Search), "fop periov OR pero OR peri OR perov OR petero OR peruo OR per 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 (petriov OR (((((petro OR petri) OR petrov) OR petero) OR petruo) OR petr)) o.s.*.