Perhaps you should try some spelling variations:
"fop petriov OR petro OR pero OR petru OR petruov OR peruov OR petriov OR petr o.s.*" » "fop petriov OR petrov OR pero OR petru OR petruov OR peruov OR petriov OR petr o.s.*" (Expand Search), "fop petriov OR petri OR pero OR petru OR petruov OR peruov OR petriov OR petr o.s.*" (Expand Search), "fop peteriov OR petero OR pero OR peteru OR peteruov OR peruov OR peteriov OR peter o.s.*" (Expand Search), "fop petriiov OR petrio OR pero OR petriu OR petriuov OR peruov OR petriiov OR petri o.s.*" (Expand Search), "fop periov OR pero OR pero OR peru OR peruov OR peruov OR periov 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 pero) OR petru) OR ((petruov OR peruov) OR petriov)) OR petr)) o.s.*.