Perhaps you should try some spelling variations:
"fop petrov OR periov OR peteriov OR periov OR petri OR perou OR petru OR petr o.s.*" » "fop peterov OR periov OR peteriov OR periov OR peteri OR perou OR peteru OR peter o.s.*" (Expand Search), "fop petroov OR periov OR peteriov OR periov OR petroi OR perou OR petrou OR petro o.s.*" (Expand Search), "fop perov OR periov OR peteriov OR periov OR peri OR perou OR peru 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 ((petrov OR ((periov OR peteriov) OR periov)) OR (((petri OR perou) OR petru) OR petr)) o.s.*.