Perhaps you should try some spelling variations:
"fop petriov OR pero OR peru OR petri OR petroi OR peteruo OR petriuuo OR petr o.s.*" » "fop petriov OR pero OR petru OR petri OR petroi OR peteruo OR petriuuo OR petr o.s.*" (Expand Search), "fop petriov OR pero OR per OR petri OR petroi OR peteruo OR petriuuo OR petr o.s.*" (Expand Search), "fop peteriov OR pero OR peru OR peteri OR peteroi OR peteruo OR peteriuuo OR peter o.s.*" (Expand Search), "fop petruiov OR pero OR peru OR petrui OR petruoi OR peteruo OR petruiuuo OR petru o.s.*" (Expand Search), "fop petroiov OR pero OR peru OR petroi OR petrooi OR peteruo OR petroiuuo OR petro 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 ((((pero OR peru) OR (petri OR petroi)) OR (peteruo OR petriuuo)) OR petr)) o.s.*.