Perhaps you should try some spelling variations:
"fop peterov OR petruv OR peruv OR petro OR petri OR petru OR petruo OR petr o.s.*" » "fop peterov OR petruv OR peruv OR petrov OR petri OR petru OR petruo OR petr o.s.*" (Expand Search), "fop peterov OR peteruv OR peruv OR petero OR peteri OR peteru OR peteruo OR peter o.s.*" (Expand Search), "fop peterov OR peruv OR peruv OR pero OR peri OR peru OR peruo 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 ((peterov OR (petruv OR peruv)) OR ((((petro OR petri) OR petru) OR petruo) OR petr)) o.s.*.