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