Perhaps you should try some spelling variations:
"fop petriov OR peteriov OR petri OR petrio OR petru OR peterio OR petr o.s.*" » "fop petriov OR petrov OR petri OR petrio OR petru OR peterio OR petr o.s.*" (Expand Search), "fop peteriov OR peteriov OR peteri OR peterio OR peteru OR peterio OR peter o.s.*" (Expand Search), "fop petroiov OR peteriov OR petroi OR petroio OR petrou OR peterio OR petro o.s.*" (Expand Search), "fop periov OR peteriov OR peri OR perio OR peru OR peterio 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 peteriov) OR ((((petri OR petrio) OR petru) OR peterio) OR petr)) o.s.*.